--------------------------------------------------------------------------------------------------------------------
      name:  <unnamed>
       log:  C:\research\rfwomen\restat\table2a.log
  log type:  text
 opened on:   3 Aug 2016, 10:52:54

. use data_1yr_stacked;

. gen yob=1959-age;

. gen time=yob-1915;

. *  Regression results women age 18-44;
. *  All population;
. reg marrf sr10a lnpopm urbshf i.yob i.regno, cluster(regno);

Linear regression                               Number of obs     =      2,025
                                                F(28, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9822
                                                Root MSE          =     .02555

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
       marrf |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10a |   .1493821    .027092     5.51   0.000     .0954001     .203364
      lnpopm |   .0236464   .0118768     1.99   0.050    -.0000186    .0473114
      urbshf |  -.0082985   .0759962    -0.11   0.913    -.1597242    .1431272
             |
         yob |
       1916  |   .0204434   .0024471     8.35   0.000     .0155675    .0253194
       1917  |   .0404024   .0043628     9.26   0.000     .0317092    .0490955
       1918  |   .0702723    .005891    11.93   0.000     .0585343    .0820103
       1919  |   .0697014   .0021494    32.43   0.000     .0654187    .0739841
       1920  |   .1032062   .0044706    23.09   0.000     .0942983     .112114
       1921  |   .1200929   .0037667    31.88   0.000     .1125876    .1275981
       1922  |   .1463985   .0044744    32.72   0.000     .1374831     .155314
       1923  |    .152516   .0036095    42.25   0.000     .1453239    .1597081
       1924  |   .1615789   .0048215    33.51   0.000     .1519718    .1711861
       1925  |   .1639012   .0059734    27.44   0.000      .151999    .1758033
       1926  |   .1699872   .0078472    21.66   0.000     .1543512    .1856231
       1927  |    .164243   .0102909    15.96   0.000     .1437379    .1847481
       1928  |   .1681613   .0107576    15.63   0.000     .1467262    .1895964
       1929  |   .1517776   .0122504    12.39   0.000     .1273681    .1761872
       1930  |    .156301   .0113773    13.74   0.000     .1336312    .1789708
       1931  |   .1430249   .0123818    11.55   0.000     .1183537    .1676961
       1932  |   .1396351   .0112107    12.46   0.000     .1172972     .161973
       1933  |   .1112409   .0113253     9.82   0.000     .0886748    .1338069
       1934  |   .0783481   .0109079     7.18   0.000     .0566135    .1000827
       1935  |   .0343462   .0117918     2.91   0.005     .0108506    .0578418
       1936  |  -.0309398   .0144541    -2.14   0.036    -.0597402   -.0021394
       1937  |  -.1195042   .0165337    -7.23   0.000    -.1524483   -.0865601
       1938  |  -.2312965   .0187749   -12.32   0.000    -.2687063   -.1938867
       1939  |  -.3398039   .0186117   -18.26   0.000    -.3768885   -.3027193
       1940  |  -.4604787   .0176932   -26.03   0.000    -.4957332   -.4252243
       1941  |  -.5492468   .0156647   -35.06   0.000    -.5804594   -.5180342
             |
       regno |
          2  |    -.01003   .0114532    -0.88   0.384     -.032851    .0127909
          3  |  -.0277747   .0095922    -2.90   0.005    -.0468875   -.0086619
          5  |  -.0694762   .0207373    -3.35   0.001    -.1107961   -.0281563
          6  |    .052716   .0202291     2.61   0.011     .0124085    .0930234
          7  |  -.0774538   .0338711    -2.29   0.025    -.1449435    -.009964
          8  |   -.007986   .0117765    -0.68   0.500    -.0314513    .0154793
          9  |  -.0427885   .0181476    -2.36   0.021    -.0789483   -.0066286
         10  |  -.0208641   .0259131    -0.81   0.423    -.0724972     .030769
         11  |  -.0638029   .0222444    -2.87   0.005     -.108126   -.0194799
         12  |  -.0464443   .0085546    -5.43   0.000    -.0634897   -.0293988
         13  |  -.0648977   .0085721    -7.57   0.000     -.081978   -.0478174
         14  |  -.0383158   .0192515    -1.99   0.050    -.0766753    .0000436
         15  |  -.0505172   .0161676    -3.12   0.003    -.0827319   -.0183025
         16  |  -.0798666   .0372727    -2.14   0.035    -.1541341   -.0055992
         17  |  -.0629656   .0257674    -2.44   0.017    -.1143083   -.0116229
         18  |  -.0446924    .029554    -1.51   0.135    -.1035801    .0141953
         19  |  -.0374003   .0238614    -1.57   0.121    -.0849452    .0101446
         20  |  -.0580605   .0223391    -2.60   0.011     -.102572   -.0135489
         21  |   -.056193    .015606    -3.60   0.001    -.0872887   -.0250973
         22  |  -.0155229   .0125666    -1.24   0.221    -.0405623    .0095166
         23  |  -.0581466   .0082867    -7.02   0.000    -.0746582    -.041635
         24  |  -.0627559   .0278302    -2.25   0.027    -.1182088   -.0073031
         25  |  -.0726318   .0344993    -2.11   0.039    -.1413732   -.0038904
         26  |  -.0973514   .0302356    -3.22   0.002    -.1575971   -.0371058
         27  |  -.0643104   .0207643    -3.10   0.003    -.1056843   -.0229366
         28  |  -.0669754   .0200727    -3.34   0.001    -.1069711   -.0269797
         29  |  -.0574823   .0341544    -1.68   0.097    -.1255364    .0105718
         30  |  -.0633222    .023416    -2.70   0.008    -.1099796   -.0166648
         31  |  -.0467419   .0322661    -1.45   0.152    -.1110335    .0175497
         32  |  -.0503164   .0247795    -2.03   0.046    -.0996906   -.0009422
         33  |  -.0386097   .0278729    -1.39   0.170    -.0941477    .0169283
         34  |    .060137   .0395212     1.52   0.132    -.0186106    .1388847
         35  |  -.0739345    .020009    -3.70   0.000    -.1138033   -.0340657
         36  |   .0232835   .0092748     2.51   0.014      .004803     .041764
         37  |  -.0109809   .0119732    -0.92   0.362     -.034838    .0128762
         38  |  -.0465275   .0222668    -2.09   0.040    -.0908951   -.0021599
         39  |  -.0137591   .0142753    -0.96   0.338    -.0422032     .014685
         40  |  -.0180159   .0139579    -1.29   0.201    -.0458277    .0097958
         41  |  -.0164386   .0198467    -0.83   0.410    -.0559839    .0231068
         42  |   .0456662   .0273777     1.67   0.100    -.0088851    .1002175
         43  |   .0533742   .0249675     2.14   0.036     .0036254     .103123
         44  |   .0432115   .0169257     2.55   0.013     .0094864    .0769367
         46  |  -.0214462    .009292    -2.31   0.024     -.039961   -.0029314
         47  |   .0653133   .0150207     4.35   0.000     .0353839    .0952427
         49  |  -.0118534   .0252588    -0.47   0.640    -.0621825    .0384758
         50  |  -.0010152    .026318    -0.04   0.969     -.053455    .0514246
         51  |  -.0102478   .0185864    -0.55   0.583     -.047282    .0267865
         52  |  -.0434658   .0231859    -1.87   0.065    -.0896648    .0027332
         53  |  -.0555771   .0147878    -3.76   0.000    -.0850424   -.0261118
         54  |  -.0050611    .022832    -0.22   0.825    -.0505548    .0404325
         55  |  -.0164927   .0156885    -1.05   0.297    -.0477528    .0147674
         56  |  -.0502819   .0175076    -2.87   0.005    -.0851666   -.0153971
         58  |    -.03568   .0252437    -1.41   0.162    -.0859792    .0146192
         59  |  -.0092776   .0213981    -0.43   0.666    -.0519143    .0333591
         61  |  -.0132599   .0260767    -0.51   0.613    -.0652188     .038699
         62  |   .0100389   .0215864     0.47   0.643    -.0329729    .0530508
         63  |  -.0217716   .0145964    -1.49   0.140    -.0508555    .0073123
         64  |  -.0096203     .01644    -0.59   0.560    -.0423776     .023137
         65  |   .0010939   .0100833     0.11   0.914    -.0189975    .0211853
         66  |  -.0105502   .0239923    -0.44   0.661    -.0583559    .0372556
         69  |    .014397   .0161833     0.89   0.377     -.017849    .0466429
         70  |   .1106744   .0311126     3.56   0.001     .0486812    .1726675
         71  |   .0664244   .0100929     6.58   0.000     .0463139    .0865349
         72  |     .00237   .0185262     0.13   0.899    -.0345443    .0392843
         75  |   .0137253   .0150031     0.91   0.363     -.016169    .0436197
         77  |   .0313065   .0080139     3.91   0.000     .0153384    .0472745
         79  |   .0101749    .012624     0.81   0.423    -.0149791    .0353288
         82  |    .071935   .0101028     7.12   0.000     .0518048    .0920653
         83  |   .0533351   .0120828     4.41   0.000     .0292597    .0774106
         84  |    .072876   .0032203    22.63   0.000     .0664594    .0792926
         85  |   .1224857   .0119178    10.28   0.000      .098739    .1462325
         87  |   .0713674   .0221373     3.22   0.002     .0272578    .1154769
         88  |   .1125868   .0102841    10.95   0.000     .0920952    .1330783
         89  |   .0478835   .0037576    12.74   0.000     .0403963    .0553707
             |
       _cons |   .2975528   .1131306     2.63   0.010     .0721352    .5229703
------------------------------------------------------------------------------

. reg marrf sr10a lnpopm urbshf i.yob i.regno [aweight=popf], cluster(regno);
(sum of wgt is   2.7470e+07)

Linear regression                               Number of obs     =      2,025
                                                F(28, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9849
                                                Root MSE          =     .02529

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
       marrf |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10a |   .1504151   .0453837     3.31   0.001     .0599861     .240844
      lnpopm |   .0519475   .0160183     3.24   0.002     .0200304    .0838646
      urbshf |   .1511895   .1230122     1.23   0.223    -.0939177    .3962967
             |
         yob |
       1916  |   .0246395   .0024174    10.19   0.000     .0198228    .0294562
       1917  |   .0469246    .004295    10.93   0.000     .0383666    .0554825
       1918  |   .0812475   .0061613    13.19   0.000     .0689709    .0935241
       1919  |   .0678348   .0029837    22.73   0.000     .0618895      .07378
       1920  |   .1079977   .0047729    22.63   0.000     .0984875    .1175079
       1921  |   .1204071   .0048869    24.64   0.000     .1106697    .1301444
       1922  |   .1460721   .0055561    26.29   0.000     .1350014    .1571429
       1923  |   .1485622    .006045    24.58   0.000     .1365172    .1606072
       1924  |    .150319   .0096261    15.62   0.000     .1311387    .1694994
       1925  |   .1485416   .0111731    13.29   0.000     .1262788    .1708045
       1926  |   .1501056   .0144101    10.42   0.000     .1213928    .1788184
       1927  |   .1374334   .0177148     7.76   0.000     .1021358     .172731
       1928  |   .1409232   .0181404     7.77   0.000     .1047778    .1770686
       1929  |   .1217722   .0197391     6.17   0.000     .0824412    .1611032
       1930  |   .1299971   .0187923     6.92   0.000     .0925525    .1674416
       1931  |   .1151851   .0199881     5.76   0.000     .0753579    .1550123
       1932  |   .1153775   .0194867     5.92   0.000     .0765493    .1542056
       1933  |   .0875192   .0196416     4.46   0.000     .0483826    .1266559
       1934  |   .0591972   .0190923     3.10   0.003     .0211549    .0972394
       1935  |   .0119629   .0211599     0.57   0.574    -.0301991     .054125
       1936  |  -.0615166   .0251493    -2.45   0.017    -.1116277   -.0114056
       1937  |  -.1562068   .0285192    -5.48   0.000    -.2130326    -.099381
       1938  |  -.2816355   .0343364    -8.20   0.000    -.3500522   -.2132188
       1939  |  -.3858951   .0320971   -12.02   0.000    -.4498499   -.3219403
       1940  |  -.5011607   .0296185   -16.92   0.000    -.5601769   -.4421444
       1941  |  -.5791646   .0254953   -22.72   0.000    -.6299651   -.5283642
             |
       regno |
          2  |  -.0244154   .0164387    -1.49   0.142    -.0571703    .0083394
          3  |  -.0369282   .0078443    -4.71   0.000    -.0525583   -.0212982
          5  |  -.0416961   .0270748    -1.54   0.128    -.0956439    .0122516
          6  |   .0082307   .0328934     0.25   0.803    -.0573109    .0737723
          7  |  -.1786539   .0626216    -2.85   0.006    -.3034301   -.0538776
          8  |  -.0020757   .0121734    -0.17   0.865    -.0263318    .0221805
          9  |  -.0051493   .0286264    -0.18   0.858    -.0621885      .05189
         10  |   .0297306   .0391499     0.76   0.450    -.0482774    .1077385
         11  |  -.0343803   .0286694    -1.20   0.234    -.0915055    .0227448
         12  |   -.058131   .0086547    -6.72   0.000    -.0753759   -.0408861
         13  |  -.0890609   .0150594    -5.91   0.000    -.1190674   -.0590543
         14  |   -.001621   .0282616    -0.06   0.954    -.0579334    .0546914
         15  |  -.0240711   .0227547    -1.06   0.294    -.0694108    .0212685
         16  |  -.1929111   .0684165    -2.82   0.006     -.329234   -.0565882
         17  |  -.1184245   .0316019    -3.75   0.000    -.1813926   -.0554563
         18  |     .01524   .0453065     0.34   0.738    -.0750351    .1055152
         19  |  -.0055137   .0306599    -0.18   0.858    -.0666049    .0555775
         20  |  -.0194341    .031476    -0.62   0.539    -.0821514    .0432831
         21  |  -.0549823   .0144234    -3.81   0.000    -.0837215    -.026243
         22  |  -.0411659   .0154811    -2.66   0.010    -.0720126   -.0103191
         23  |   -.073367   .0091942    -7.98   0.000    -.0916868   -.0550472
         24  |   .0023912   .0456753     0.05   0.958    -.0886189    .0934013
         25  |   -.001894   .0532115    -0.04   0.972    -.1079203    .1041323
         26  |  -.0425425   .0455173    -0.93   0.353    -.1332376    .0481526
         27  |  -.0509757   .0217473    -2.34   0.022    -.0943081   -.0076433
         28  |  -.0952395   .0197082    -4.83   0.000     -.134509     -.05597
         29  |   .0052977    .050308     0.11   0.916    -.0949432    .1055387
         30  |  -.0493737   .0245921    -2.01   0.048    -.0983746   -.0003728
         31  |   .0044462   .0450101     0.10   0.922    -.0852385    .0941309
         32  |  -.0065372   .0354575    -0.18   0.854    -.0771879    .0641135
         33  |   .0029435   .0373541     0.08   0.937    -.0714861    .0773731
         34  |   .1766943   .0722775     2.44   0.017     .0326782    .3207103
         35  |  -.0819552   .0179581    -4.56   0.000    -.1177374    -.046173
         36  |   .0423897   .0154604     2.74   0.008     .0115843    .0731952
         37  |  -.0264526   .0112752    -2.35   0.022     -.048919   -.0039863
         38  |  -.0174329   .0280257    -0.62   0.536    -.0732752    .0384095
         39  |  -.0502204   .0203577    -2.47   0.016    -.0907839   -.0096569
         40  |  -.0371347   .0130325    -2.85   0.006    -.0631026   -.0111669
         41  |   .0182212   .0276366     0.66   0.512    -.0368459    .0732883
         42  |   .1291563   .0502792     2.57   0.012     .0289728    .2293397
         43  |    .109027   .0394664     2.76   0.007     .0303886    .1876654
         44  |   .0990701   .0342802     2.89   0.005     .0307652    .1673749
         46  |  -.0025077   .0180238    -0.14   0.890    -.0384209    .0334056
         47  |   .1102929   .0264821     4.16   0.000     .0575262    .1630597
         49  |  -.0155574   .0224031    -0.69   0.490    -.0601967    .0290818
         50  |   .0312948   .0322672     0.97   0.335    -.0329989    .0955886
         51  |  -.0435692    .021015    -2.07   0.042    -.0854425    -.001696
         52  |   -.044881    .020612    -2.18   0.033    -.0859514   -.0038107
         53  |  -.0398967   .0175887    -2.27   0.026    -.0749429   -.0048505
         54  |    .042003   .0333657     1.26   0.212    -.0244797    .1084857
         55  |   -.011802   .0146286    -0.81   0.422    -.0409502    .0173462
         56  |  -.0882453   .0214978    -4.10   0.000    -.1310805   -.0454101
         58  |  -.1100024   .0423205    -2.60   0.011    -.1943279    -.025677
         59  |  -.0717173   .0366828    -1.96   0.054    -.1448093    .0013747
         61  |   .0021822    .026065     0.08   0.934    -.0497534    .0541178
         62  |  -.0527239   .0373722    -1.41   0.163    -.1271896    .0217419
         63  |  -.0447408   .0153045    -2.92   0.005    -.0752358   -.0142458
         64  |  -.0016615      .0159    -0.10   0.917    -.0333429      .03002
         65  |   .0175899    .013823     1.27   0.207    -.0099531    .0451328
         66  |   .0324368   .0343472     0.94   0.348    -.0360015    .1008751
         69  |   .0521864    .026428     1.97   0.052    -.0004725    .1048453
         70  |    .204622   .0582733     3.51   0.001     .0885099     .320734
         71  |    .098824   .0184866     5.35   0.000     .0619887    .1356593
         72  |  -.0186548   .0155865    -1.20   0.235    -.0497115     .012402
         75  |  -.0234974   .0193402    -1.21   0.228    -.0620337    .0150389
         77  |   .0385161   .0084977     4.53   0.000     .0215841     .055448
         79  |   .0313404   .0222918     1.41   0.164     -.013077    .0757578
         82  |   .0446128   .0152689     2.92   0.005     .0141889    .0750367
         83  |   .0164726   .0212386     0.78   0.440    -.0258463    .0587915
         84  |   .0764785   .0044245    17.29   0.000     .0676625    .0852945
         85  |   .1452457   .0170178     8.53   0.000      .111337    .1791544
         87  |   .0573887   .0316872     1.81   0.074    -.0057495    .1205269
         88  |   .0909448   .0166463     5.46   0.000     .0577764    .1241133
         89  |   .0426648    .007035     6.06   0.000     .0286473    .0566823
             |
       _cons |  -.0316023     .18673    -0.17   0.866      -.40367    .3404655
------------------------------------------------------------------------------

. reg marrf sr10a lnpopm urbshf i.yob i.regno i.regno#c.time, cluster(regno);
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      2,025
                                                F(27, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9916
                                                Root MSE          =     .01795

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
       marrf |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10a |   .2010894   .0400494     5.02   0.000     .1212892    .2808896
      lnpopm |   .0244567   .0077534     3.15   0.002     .0090077    .0399058
      urbshf |   -.004621    .065043    -0.07   0.944     -.134222    .1249799
             |
         yob |
       1916  |   .0198196    .002099     9.44   0.000     .0156372    .0240021
       1917  |   .0392963   .0033858    11.61   0.000       .03255    .0460427
       1918  |   .0687637   .0047492    14.48   0.000     .0593008    .0782267
       1919  |   .0674343   .0028084    24.01   0.000     .0618384    .0730303
       1920  |    .100495   .0044461    22.60   0.000     .0916361     .109354
       1921  |   .1169594   .0039581    29.55   0.000     .1090727    .1248461
       1922  |   .1426692   .0046521    30.67   0.000     .1333997    .1519388
       1923  |   .1480407   .0039841    37.16   0.000     .1401023    .1559791
       1924  |   .1557393   .0042191    36.91   0.000     .1473326    .1641461
       1925  |   .1563714   .0044803    34.90   0.000     .1474442    .1652985
       1926  |   .1601276   .0051387    31.16   0.000     .1498886    .1703667
       1927  |   .1521758   .0069055    22.04   0.000     .1384163    .1659352
       1928  |   .1541972   .0073934    20.86   0.000     .1394655    .1689288
       1929  |   .1359221   .0088557    15.35   0.000     .1182768    .1535675
       1930  |   .1386998    .008332    16.65   0.000     .1220978    .1553017
       1931  |   .1238377   .0091482    13.54   0.000     .1056094    .1420659
       1932  |   .1190608   .0082685    14.40   0.000     .1025856    .1355361
       1933  |   .0892125   .0085355    10.45   0.000     .0722052    .1062199
       1934  |     .05459   .0084192     6.48   0.000     .0378144    .0713657
       1935  |   .0087075   .0090904     0.96   0.341    -.0094055    .0268204
       1936  |   -.058718   .0106213    -5.53   0.000    -.0798814   -.0375546
       1937  |  -.1489212   .0117605   -12.66   0.000    -.1723546   -.1254879
       1938  |   -.262363   .0135766   -19.32   0.000     -.289415    -.235311
       1939  |  -.3715294   .0136717   -27.18   0.000    -.3987709    -.344288
       1940  |  -.4930743   .0133692   -36.88   0.000    -.5197131   -.4664356
       1941  |  -.5823365   .0132698   -43.88   0.000    -.6087772   -.5558958
             |
       regno |
          2  |  -.0047373   .0139729    -0.34   0.736    -.0325788    .0231043
          3  |   .0015596   .0094893     0.16   0.870    -.0173482    .0204674
          5  |  -.0424458   .0214749    -1.98   0.052    -.0852356    .0003439
          6  |   .0718607   .0166983     4.30   0.000     .0385886    .1051328
          7  |  -.0240543   .0272465    -0.88   0.380    -.0783441    .0302356
          8  |  -.0030018   .0112385    -0.27   0.790     -.025395    .0193914
          9  |  -.0206898   .0163412    -1.27   0.209    -.0532503    .0118707
         10  |   -.015471   .0240929    -0.64   0.523    -.0634771    .0325351
         11  |  -.0891925    .020794    -4.29   0.000    -.1306255   -.0477596
         12  |  -.0401765   .0087299    -4.60   0.000    -.0575713   -.0227818
         13  |  -.0546113   .0064593    -8.45   0.000    -.0674818   -.0417408
         14  |  -.0610406   .0182579    -3.34   0.001    -.0974203   -.0246609
         15  |   -.042527   .0180416    -2.36   0.021    -.0784755   -.0065784
         16  |  -.0310073   .0295854    -1.05   0.298    -.0899574    .0279429
         17  |  -.0463192   .0202617    -2.29   0.025    -.0866914   -.0059469
         18  |  -.0723501   .0274382    -2.64   0.010    -.1270219   -.0176782
         19  |   -.062819    .024583    -2.56   0.013    -.1118018   -.0138362
         20  |   -.086637   .0223411    -3.88   0.000    -.1311527   -.0421214
         21  |  -.0497328   .0170726    -2.91   0.005    -.0837507   -.0157149
         22  |  -.0346823   .0116124    -2.99   0.004    -.0578204   -.0115442
         23  |  -.0267151    .007727    -3.46   0.001    -.0421115   -.0113187
         24  |  -.0836095   .0259783    -3.22   0.002    -.1353724   -.0318467
         25  |  -.1233732   .0313473    -3.94   0.000     -.185834   -.0609123
         26  |  -.0950242   .0276175    -3.44   0.001    -.1500532   -.0399952
         27  |  -.0794198   .0199873    -3.97   0.000    -.1192453   -.0395943
         28  |  -.0781741   .0159016    -4.92   0.000    -.1098588   -.0464894
         29  |  -.1130402   .0311685    -3.63   0.001    -.1751449   -.0509356
         30  |  -.0995174   .0225051    -4.42   0.000    -.1443598   -.0546751
         31  |  -.0742281   .0298798    -2.48   0.015    -.1337649   -.0146913
         32  |  -.0868499   .0245696    -3.53   0.001     -.135806   -.0378939
         33  |  -.0807675   .0257655    -3.13   0.002    -.1321064   -.0294286
         34  |   .0050251    .031588     0.16   0.874    -.0579153    .0679656
         35  |  -.0669291   .0173796    -3.85   0.000    -.1015587   -.0322995
         36  |   .0270647   .0069637     3.89   0.000     .0131893      .04094
         37  |  -.0371984   .0132057    -2.82   0.006    -.0635113   -.0108855
         38  |  -.0823628   .0228983    -3.60   0.001    -.1279886   -.0367369
         39  |  -.0232399   .0131544    -1.77   0.081    -.0494507    .0029708
         40  |   -.031648    .013929    -2.27   0.026    -.0594021   -.0038939
         41  |   -.059332   .0192529    -3.08   0.003    -.0976942   -.0209699
         42  |  -.0049101   .0184831    -0.27   0.791    -.0417385    .0319182
         43  |  -.0069418   .0185215    -0.37   0.709    -.0438467    .0299631
         44  |   .0125011    .007469     1.67   0.098    -.0023813    .0273834
         46  |   .0375571   .0040117     9.36   0.000     .0295637    .0455506
         47  |  -.0146277   .0112424    -1.30   0.197    -.0370287    .0077732
         49  |  -.0613662   .0222523    -2.76   0.007    -.1057049   -.0170274
         50  |   -.067103   .0217909    -3.08   0.003    -.1105223   -.0236838
         51  |  -.0448202   .0154353    -2.90   0.005    -.0755756   -.0140647
         52  |   -.085306   .0204574    -4.17   0.000    -.1260683   -.0445437
         53  |  -.0823844    .014982    -5.50   0.000    -.1122366   -.0525321
         54  |  -.0800568   .0227072    -3.53   0.001    -.1253018   -.0348117
         55  |  -.0519889   .0148439    -3.50   0.001     -.081566   -.0224119
         56  |   -.063452   .0141459    -4.49   0.000    -.0916383   -.0352657
         58  |  -.0396155   .0182386    -2.17   0.033    -.0759568   -.0032742
         59  |  -.0285161   .0167489    -1.70   0.093     -.061889    .0048568
         61  |  -.0876768   .0248229    -3.53   0.001    -.1371376    -.038216
         62  |   -.020888   .0159165    -1.31   0.193    -.0526023    .0108264
         63  |   -.050327   .0127356    -3.95   0.000    -.0757032   -.0249508
         64  |    -.04541   .0170411    -2.66   0.009    -.0793651   -.0114549
         65  |  -.0072317   .0152507    -0.47   0.637    -.0376193    .0231559
         66  |  -.0570492   .0231354    -2.47   0.016    -.1031475   -.0109508
         69  |  -.0143631   .0173738    -0.83   0.411    -.0489813     .020255
         70  |   .0685398    .026701     2.57   0.012     .0153368    .1217428
         71  |    .018325   .0086038     2.13   0.037     .0011816    .0354684
         72  |  -.0189996   .0190423    -1.00   0.322    -.0569421    .0189429
         75  |   .0111148   .0169684     0.66   0.514    -.0226956    .0449251
         77  |   .0012724   .0097266     0.13   0.896    -.0181083    .0206531
         79  |   .0194768   .0222061     0.88   0.383    -.0247697    .0637234
         82  |   .0636061   .0139337     4.56   0.000     .0358426    .0913696
         83  |   .0572138   .0175748     3.26   0.002     .0221952    .0922324
         84  |   .0526023    .012875     4.09   0.000     .0269483    .0782562
         85  |   .0953242   .0153066     6.23   0.000     .0648251    .1258233
         87  |   -.038585   .0464451    -0.83   0.409    -.1311288    .0539588
         88  |   .0630626   .0181496     3.47   0.001     .0268986    .0992265
         89  |   .0396564   .0035033    11.32   0.000     .0326759    .0466368
             |
regno#c.time |
          1  |  -.0009436   .0004472    -2.11   0.038    -.0018347   -.0000526
          2  |  -.0028553   .0006933    -4.12   0.000    -.0042368   -.0014738
          3  |  -.0035674   .0008641    -4.13   0.000    -.0052892   -.0018456
          5  |  -.0028616    .000746    -3.84   0.000    -.0043481   -.0013751
          6  |  -.0026421   .0004798    -5.51   0.000    -.0035981   -.0016861
          7  |  -.0049533   .0002426   -20.42   0.000    -.0054367   -.0044699
          8  |  -.0011586   .0002312    -5.01   0.000    -.0016192    -.000698
          9  |  -.0024079   .0004834    -4.98   0.000    -.0033711   -.0014447
         10  |  -.0010567   .0003915    -2.70   0.009    -.0018367   -.0002767
         11  |   .0014487   .0003095     4.68   0.000     .0008319    .0020655
         12  |  -.0012534   .0003279    -3.82   0.000    -.0019067   -.0006001
         13  |  -.0014405   .0003528    -4.08   0.000    -.0021435   -.0007375
         14  |   .0010926   .0004635     2.36   0.021     .0001691    .0020161
         15  |  -.0014524   .0006812    -2.13   0.036    -.0028097    -.000095
         16  |  -.0047408   .0002091   -22.67   0.000    -.0051574   -.0043242
         17  |   -.002184   .0001671   -13.07   0.000    -.0025169   -.0018511
         18  |   .0014523   .0004819     3.01   0.004     .0004921    .0024126
         19  |   .0011078   .0006273     1.77   0.082    -.0001421    .0023576
         20  |   .0015709   .0005669     2.77   0.007     .0004413    .0027005
         21  |  -.0012831   .0005527    -2.32   0.023    -.0023844   -.0001818
         22  |    .000423    .000294     1.44   0.154    -.0001628    .0010087
         23  |  -.0032354   .0004126    -7.84   0.000    -.0040574   -.0024134
         24  |    .001213   .0004446     2.73   0.008     .0003272    .0020988
         25  |   .0034604   .0003955     8.75   0.000     .0026724    .0042484
         26  |  -.0005256   .0003045    -1.73   0.089    -.0011323    .0000812
         27  |    .000273    .000704     0.39   0.699    -.0011297    .0016756
         28  |  -.0000417   .0003759    -0.11   0.912    -.0007907    .0007074
         29  |   .0037269   .0004129     9.03   0.000     .0029041    .0045498
         30  |   .0020287   .0003937     5.15   0.000     .0012442    .0028132
         31  |   .0014181   .0004444     3.19   0.002     .0005326    .0023036
         32  |   .0021366    .000505     4.23   0.000     .0011304    .0031428
         33  |   .0024154   .0004631     5.22   0.000     .0014926    .0033382
         34  |   .0031009   .0002965    10.46   0.000       .00251    .0036917
         35  |  -.0012774   .0003961    -3.22   0.002    -.0020667   -.0004881
         36  |  -.0013194   .0003551    -3.72   0.000     -.002027   -.0006118
         37  |   .0009866   .0003868     2.55   0.013      .000216    .0017573
         38  |   .0020028   .0004422     4.53   0.000     .0011216     .002884
         39  |  -.0003895   .0002415    -1.61   0.111    -.0008706    .0000916
         40  |  -.0000182    .000408    -0.04   0.965    -.0008312    .0007949
         41  |   .0025134   .0003697     6.80   0.000     .0017768      .00325
         42  |   .0031907   .0002626    12.15   0.000     .0026675    .0037139
         43  |   .0038155   .0003182    11.99   0.000     .0031815    .0044494
         44  |   .0013766   .0007026     1.96   0.054    -.0000234    .0027767
         46  |  -.0053703   .0003595   -14.94   0.000    -.0060866    -.004654
         47  |   .0052103    .000366    14.24   0.000     .0044811    .0059395
         49  |   .0028406   .0002501    11.36   0.000     .0023423    .0033389
         50  |   .0041585   .0003035    13.70   0.000     .0035538    .0047631
         51  |   .0015424   .0003421     4.51   0.000     .0008606    .0022241
         52  |   .0023531   .0003659     6.43   0.000      .001624    .0030822
         53  |   .0014333   .0003995     3.59   0.001     .0006372    .0022293
         54  |   .0050108   .0004614    10.86   0.000     .0040914    .0059302
         55  |   .0017932   .0003615     4.96   0.000     .0010729    .0025135
         56  |  -.0001632   .0004568    -0.36   0.722    -.0010733     .000747
         58  |  -.0010009   .0003656    -2.74   0.008    -.0017294   -.0002725
         59  |   .0002505   .0001905     1.31   0.193    -.0001291    .0006301
         61  |    .004768   .0004284    11.13   0.000     .0039144    .0056216
         62  |   .0009497    .000403     2.36   0.021     .0001468    .0017526
         63  |   .0011804   .0003309     3.57   0.001     .0005209    .0018398
         64  |   .0017879   .0003189     5.61   0.000     .0011524    .0024233
         65  |  -.0004234   .0005716    -0.74   0.461    -.0015622    .0007154
         66  |   .0027884   .0003293     8.47   0.000     .0021322    .0034446
         69  |   .0012749   .0001792     7.12   0.000     .0009179    .0016319
         70  |   .0019072   .0005382     3.54   0.001     .0008349    .0029795
         71  |   .0026718   .0002089    12.79   0.000     .0022556     .003088
         72  |   .0002039    .000408     0.50   0.619     -.000609    .0010168
         75  |  -.0015622   .0002404    -6.50   0.000    -.0020413   -.0010832
         77  |   .0012899   .0000955    13.51   0.000     .0010997    .0014802
         79  |  -.0027194    .000331    -8.22   0.000     -.003379   -.0020599
         82  |  -.0006716   .0001079    -6.22   0.000    -.0008866   -.0004565
         83  |  -.0017465   .0002991    -5.84   0.000    -.0023425   -.0011505
         84  |   .0002484   .0002446     1.02   0.313    -.0002389    .0007357
         85  |   .0004756   .0002859     1.66   0.100     -.000094    .0010452
         87  |   .0050141   .0012627     3.97   0.000     .0024981    .0075301
         88  |    .002111   .0002915     7.24   0.000     .0015301    .0026919
         89  |          0  (omitted)
             |
       _cons |   .2752534   .0849575     3.24   0.002     .1059718     .444535
------------------------------------------------------------------------------

. reg marrf sr10a lnpopm urbshf i.yob i.regno i.regno#c.time [aweight=popf], cluster(regno);
(sum of wgt is   2.7470e+07)
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      2,025
                                                F(27, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9940
                                                Root MSE          =     .01622

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
       marrf |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10a |   .1869379   .0545377     3.43   0.001     .0782691    .2956067
      lnpopm |   .0161218   .0115863     1.39   0.168    -.0069644    .0392081
      urbshf |   .1124529   .0604175     1.86   0.067    -.0079316    .2328373
             |
         yob |
       1916  |   .0179344   .0023396     7.67   0.000     .0132726    .0225962
       1917  |   .0351509   .0040958     8.58   0.000     .0269897    .0433121
       1918  |   .0642948   .0057703    11.14   0.000     .0527973    .0757924
       1919  |   .0677266   .0026807    25.26   0.000     .0623852     .073068
       1920  |    .096485   .0044624    21.62   0.000     .0875935    .1053765
       1921  |   .1139473   .0039435    28.89   0.000     .1060897    .1218049
       1922  |    .137986   .0047408    29.11   0.000     .1285398    .1474322
       1923  |   .1460128   .0038649    37.78   0.000     .1383119    .1537138
       1924  |   .1553464   .0045457    34.17   0.000     .1462888     .164404
       1925  |   .1580977    .005989    26.40   0.000     .1461644     .170031
       1926  |   .1635382   .0076484    21.38   0.000     .1482985     .178778
       1927  |   .1587823   .0111109    14.29   0.000     .1366433    .1809212
       1928  |   .1623871   .0122696    13.23   0.000     .1379394    .1868349
       1929  |   .1483915   .0147716    10.05   0.000     .1189584    .1778246
       1930  |   .1504073   .0140264    10.72   0.000     .1224591    .1783556
       1931  |    .138052   .0153169     9.01   0.000     .1075325    .1685715
       1932  |   .1313202   .0138731     9.47   0.000     .1036774     .158963
       1933  |   .1030486   .0143351     7.19   0.000     .0744852     .131612
       1934  |   .0684118   .0137427     4.98   0.000     .0410289    .0957948
       1935  |   .0205411   .0142563     1.44   0.154    -.0078653    .0489474
       1936  |  -.0477866   .0160069    -2.99   0.004    -.0796811   -.0158921
       1937  |  -.1388224   .0172684    -8.04   0.000    -.1732303   -.1044144
       1938  |   -.257616   .0188491   -13.67   0.000    -.2951736   -.2200584
       1939  |  -.3626961   .0199897   -18.14   0.000    -.4025265   -.3228657
       1940  |  -.4806179   .0208166   -23.09   0.000    -.5220958   -.4391399
       1941  |  -.5645153   .0212185   -26.60   0.000     -.606794   -.5222365
             |
       regno |
          2  |   .0046501    .017183     0.27   0.787    -.0295879     .038888
          3  |   .0238566    .011644     2.05   0.044     .0006554    .0470578
          5  |   -.001018   .0216809    -0.05   0.963    -.0442181    .0421822
          6  |   .0412221   .0157543     2.62   0.011     .0098309    .0726133
          7  |  -.0472353   .0301055    -1.57   0.121    -.1072218    .0127512
          8  |   .0195148   .0142479     1.37   0.175    -.0088748    .0479043
          9  |   .0062037   .0153706     0.40   0.688    -.0244228    .0368303
         10  |   .0299245    .023199     1.29   0.201    -.0163006    .0761496
         11  |  -.0501843     .02151    -2.33   0.022    -.0930438   -.0073248
         12  |  -.0242642   .0123306    -1.97   0.053    -.0488334     .000305
         13  |  -.0525249   .0097408    -5.39   0.000    -.0719339   -.0331158
         14  |  -.0271202   .0175468    -1.55   0.126    -.0620829    .0078425
         15  |  -.0093582   .0177881    -0.53   0.600    -.0448018    .0260853
         16  |  -.0539448   .0339682    -1.59   0.117    -.1216279    .0137382
         17  |  -.0244521   .0302667    -0.81   0.422    -.0847598    .0358557
         18  |  -.0225527   .0260764    -0.86   0.390    -.0745111    .0294058
         19  |  -.0168733   .0247403    -0.68   0.497    -.0661695    .0324228
         20  |  -.0437756   .0222153    -1.97   0.053    -.0880405    .0004893
         21  |  -.0163185   .0202467    -0.81   0.423    -.0566609    .0240239
         22  |  -.0233212   .0172463    -1.35   0.180    -.0576852    .0110429
         23  |  -.0144576    .011558    -1.25   0.215    -.0374874    .0085722
         24  |  -.0442945   .0239491    -1.85   0.068    -.0920141    .0034251
         25  |  -.0709331   .0295862    -2.40   0.019     -.129885   -.0119812
         26  |  -.0502164   .0261322    -1.92   0.059    -.1022861    .0018532
         27  |  -.0416387   .0216055    -1.93   0.058    -.0846885    .0014111
         28  |  -.0539643   .0229961    -2.35   0.022     -.099785   -.0081436
         29  |  -.0588415   .0301308    -1.95   0.055    -.1188784    .0011953
         30  |  -.0577223   .0259526    -2.22   0.029     -.109434   -.0060107
         31  |  -.0181536   .0299071    -0.61   0.546    -.0777448    .0414376
         32  |   -.045522   .0237131    -1.92   0.059    -.0927714    .0017275
         33  |  -.0327976   .0264226    -1.24   0.218    -.0854457    .0198505
         34  |   .0385716    .031696     1.22   0.227     -.024584    .1017272
         35  |  -.0357876   .0213652    -1.68   0.098    -.0783587    .0067835
         36  |   .0369298   .0081392     4.54   0.000     .0207121    .0531475
         37  |  -.0195643   .0179482    -1.09   0.279    -.0553268    .0161982
         38  |  -.0400208   .0238632    -1.68   0.098    -.0875693    .0075276
         39  |  -.0134982   .0192279    -0.70   0.485    -.0518105    .0248142
         40  |  -.0079227   .0190187    -0.42   0.678    -.0458183    .0299729
         41  |  -.0240321   .0192751    -1.25   0.216    -.0624386    .0143743
         42  |   .0088257   .0186447     0.47   0.637    -.0283247    .0459762
         43  |   .0077389   .0198877     0.39   0.698    -.0318883    .0473661
         44  |    .010231   .0114205     0.90   0.373    -.0125248    .0329867
         46  |   .0327787   .0063385     5.17   0.000     .0201489    .0454085
         47  |  -.0167928   .0137181    -1.22   0.225    -.0441268    .0105412
         49  |  -.0226913   .0288602    -0.79   0.434    -.0801965    .0348139
         50  |  -.0291111   .0248842    -1.17   0.246     -.078694    .0204717
         51  |  -.0254606    .022408    -1.14   0.260    -.0701096    .0191883
         52  |  -.0525876   .0247413    -2.13   0.037    -.1018857   -.0032896
         53  |  -.0609842    .015781    -3.86   0.000    -.0924285   -.0295399
         54  |    -.04649   .0218271    -2.13   0.037    -.0899815   -.0029985
         55  |  -.0263746   .0174719    -1.51   0.135    -.0611882     .008439
         56  |  -.0475135   .0207937    -2.28   0.025    -.0889457   -.0060812
         58  |  -.0397063   .0249314    -1.59   0.116    -.0893831    .0099705
         59  |  -.0346828   .0218219    -1.59   0.116     -.078164    .0087983
         61  |  -.0469923   .0282944    -1.66   0.101    -.1033702    .0093855
         62  |   -.029009   .0208181    -1.39   0.168      -.07049    .0124719
         63  |  -.0345946    .017963    -1.93   0.058    -.0703867    .0011974
         64  |  -.0186856    .019569    -0.95   0.343    -.0576778    .0203066
         65  |   .0209662   .0159751     1.31   0.193    -.0108648    .0527972
         66  |  -.0194203   .0230623    -0.84   0.402    -.0653729    .0265323
         69  |   .0088447   .0184588     0.48   0.633    -.0279354    .0456247
         70  |   .0788642   .0318289     2.48   0.016     .0154438    .1422847
         71  |    .016581   .0098232     1.69   0.096    -.0029922    .0361541
         72  |    .008392   .0249828     0.34   0.738    -.0413873    .0581712
         75  |   .0197756   .0233637     0.85   0.400    -.0267777    .0663288
         77  |   .0096615   .0118818     0.81   0.419    -.0140135    .0333364
         79  |   .0328365   .0296006     1.11   0.271    -.0261439    .0918169
         82  |   .0673851    .017089     3.94   0.000     .0333345    .1014357
         83  |   .0529361   .0210841     2.51   0.014     .0109251    .0949471
         84  |   .0577229   .0165799     3.48   0.001     .0246868     .090759
         85  |   .0825489   .0202127     4.08   0.000     .0422741    .1228237
         87  |  -.0481253   .0573406    -0.84   0.404    -.1623789    .0661284
         88  |   .0444062   .0215261     2.06   0.043     .0015144    .0872979
         89  |   .0278511   .0038047     7.32   0.000     .0202701    .0354321
             |
regno#c.time |
          1  |  -.0011482   .0005196    -2.21   0.030    -.0021835   -.0001128
          2  |  -.0028542   .0009303    -3.07   0.003    -.0047078   -.0010006
          3  |  -.0041987   .0010619    -3.95   0.000    -.0063146   -.0020829
          5  |  -.0034543   .0008802    -3.92   0.000    -.0052082   -.0017004
          6  |  -.0027657   .0006727    -4.11   0.000    -.0041061   -.0014253
          7  |  -.0055716   .0002926   -19.04   0.000    -.0061546   -.0049887
          8  |  -.0015518   .0002711    -5.72   0.000    -.0020919   -.0010117
          9  |  -.0026346   .0005673    -4.64   0.000     -.003765   -.0015043
         10  |  -.0015708   .0004651    -3.38   0.001    -.0024975   -.0006441
         11  |    .001016    .000348     2.92   0.005     .0003225    .0017095
         12  |   -.001931   .0003383    -5.71   0.000     -.002605    -.001257
         13  |  -.0019922   .0003653    -5.45   0.000    -.0027201   -.0012643
         14  |   .0006106   .0005326     1.15   0.255    -.0004507    .0016719
         15  |  -.0021793   .0007722    -2.82   0.006     -.003718   -.0006407
         16  |  -.0051214    .000265   -19.33   0.000    -.0056494   -.0045934
         17  |   -.002426   .0002097   -11.57   0.000    -.0028439   -.0020081
         18  |   .0010054   .0005557     1.81   0.074    -.0001018    .0021125
         19  |    .000459    .000713     0.64   0.522    -.0009617    .0018796
         20  |   .0009298   .0006768     1.37   0.174    -.0004188    .0022784
         21  |  -.0020906   .0006246    -3.35   0.001    -.0033351   -.0008462
         22  |   .0001084    .000339     0.32   0.750    -.0005671    .0007839
         23  |  -.0037419   .0004623    -8.09   0.000    -.0046631   -.0028208
         24  |    .000851   .0004817     1.77   0.081    -.0001089    .0018109
         25  |   .0032187   .0004478     7.19   0.000     .0023263     .004111
         26  |   -.000731    .000321    -2.28   0.026    -.0013706   -.0000914
         27  |  -.0000917   .0008249    -0.11   0.912    -.0017353    .0015519
         28  |  -.0002735   .0004225    -0.65   0.519    -.0011153    .0005683
         29  |    .003519   .0004789     7.35   0.000     .0025647    .0044734
         30  |   .0016563   .0004508     3.67   0.000      .000758    .0025545
         31  |   .0010058   .0005106     1.97   0.053    -.0000115    .0020231
         32  |    .001775   .0005638     3.15   0.002     .0006516    .0028984
         33  |   .0021469   .0005471     3.92   0.000     .0010568    .0032369
         34  |   .0034629   .0003052    11.35   0.000     .0028548    .0040711
         35  |  -.0015176   .0004062    -3.74   0.000     -.002327   -.0007082
         36  |  -.0013436   .0003532    -3.80   0.000    -.0020475   -.0006398
         37  |   .0005252   .0004014     1.31   0.195    -.0002747    .0013251
         38  |   .0014236   .0004878     2.92   0.005     .0004515    .0023956
         39  |  -.0008247   .0002601    -3.17   0.002    -.0013429   -.0003065
         40  |  -.0007008   .0004394    -1.59   0.115    -.0015763    .0001748
         41  |   .0020768   .0004028     5.16   0.000     .0012741    .0028794
         42  |   .0038857   .0001931    20.12   0.000      .003501    .0042705
         43  |   .0053019   .0001736    30.55   0.000     .0049561    .0056477
         44  |   .0026328   .0005403     4.87   0.000     .0015563    .0037094
         46  |  -.0048498    .000237   -20.46   0.000    -.0053221   -.0043774
         47  |   .0065493   .0003399    19.27   0.000     .0058721    .0072264
         49  |   .0028352   .0002729    10.39   0.000     .0022914     .003379
         50  |   .0045371   .0002628    17.27   0.000     .0040135    .0050607
         51  |   .0012629   .0003651     3.46   0.001     .0005354    .0019904
         52  |   .0023922   .0003522     6.79   0.000     .0016904    .0030941
         53  |   .0012801   .0004244     3.02   0.004     .0004344    .0021259
         54  |    .004925   .0005159     9.55   0.000     .0038971    .0059529
         55  |   .0016194   .0003899     4.15   0.000     .0008425    .0023962
         56  |  -.0005121   .0004986    -1.03   0.308    -.0015056    .0004813
         58  |   -.001264   .0003861    -3.27   0.002    -.0020333   -.0004946
         59  |   .0002175   .0001865     1.17   0.247    -.0001541     .000589
         61  |   .0047623    .000486     9.80   0.000      .003794    .0057306
         62  |   .0009772   .0004566     2.14   0.036     .0000674     .001887
         63  |   .0009255   .0003644     2.54   0.013     .0001994    .0016516
         64  |    .001591   .0003351     4.75   0.000     .0009234    .0022587
         65  |  -.0015505   .0006444    -2.41   0.019    -.0028346   -.0002665
         66  |   .0025999   .0003652     7.12   0.000     .0018722    .0033276
         69  |   .0009739    .000291     3.35   0.001      .000394    .0015537
         70  |   .0027573   .0007702     3.58   0.001     .0012227    .0042919
         71  |   .0028921   .0002174    13.30   0.000     .0024589    .0033253
         72  |  -.0001152   .0004482    -0.26   0.798    -.0010083    .0007779
         75  |  -.0016255   .0002637    -6.16   0.000    -.0021509      -.0011
         77  |   .0014067   .0000862    16.31   0.000     .0012349    .0015785
         79  |  -.0028094   .0005223    -5.38   0.000      -.00385   -.0017687
         82  |  -.0009762   .0001582    -6.17   0.000    -.0012914    -.000661
         83  |  -.0022237   .0004422    -5.03   0.000    -.0031049   -.0013426
         84  |  -.0001011   .0003545    -0.29   0.776    -.0008074    .0006052
         85  |   .0005308    .000379     1.40   0.165    -.0002243     .001286
         87  |   .0043595   .0016864     2.59   0.012     .0009993    .0077196
         88  |   .0022558   .0004268     5.29   0.000     .0014055    .0031062
         89  |          0  (omitted)
             |
       _cons |    .277295   .1046172     2.65   0.010     .0688406    .4857493
------------------------------------------------------------------------------

. *  Urban age 18-44;
. reg marrfu sr10u lnpopmu i.yob i.regno, cluster(regno);

Linear regression                               Number of obs     =      2,025
                                                F(27, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9899
                                                Root MSE          =     .02066

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrfu |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10u |    .111099   .0206312     5.39   0.000     .0699905    .1522076
     lnpopmu |   .0226372   .0116102     1.95   0.055    -.0004967    .0457711
             |
         yob |
       1916  |   .0188547   .0023903     7.89   0.000     .0140919    .0236174
       1917  |   .0339281     .00382     8.88   0.000     .0263166    .0415395
       1918  |   .0600156   .0059049    10.16   0.000     .0482499    .0717814
       1919  |   .0663629   .0021165    31.35   0.000     .0621457    .0705801
       1920  |   .0953833   .0044116    21.62   0.000     .0865929    .1041737
       1921  |   .1117171   .0033696    33.15   0.000     .1050031    .1184312
       1922  |    .132265   .0041747    31.68   0.000     .1239468    .1405832
       1923  |   .1391566   .0028562    48.72   0.000     .1334654    .1448477
       1924  |   .1451989   .0028176    51.53   0.000     .1395848    .1508131
       1925  |   .1463154   .0036947    39.60   0.000     .1389535    .1536773
       1926  |   .1521839    .005713    26.64   0.000     .1408005    .1635673
       1927  |   .1466318   .0086666    16.92   0.000     .1293632    .1639004
       1928  |   .1495396   .0092717    16.13   0.000     .1310652    .1680139
       1929  |   .1381873   .0108427    12.74   0.000     .1165827    .1597918
       1930  |   .1393685   .0095472    14.60   0.000     .1203454    .1583917
       1931  |   .1274203   .0104318    12.21   0.000     .1066345    .1482061
       1932  |   .1220531   .0088133    13.85   0.000     .1044921    .1396141
       1933  |   .0938895   .0094401     9.95   0.000     .0750796    .1126994
       1934  |   .0587906    .008379     7.02   0.000     .0420951    .0754861
       1935  |    .008312   .0092051     0.90   0.369    -.0100295    .0266536
       1936  |  -.0658349   .0119518    -5.51   0.000    -.0896493   -.0420205
       1937  |  -.1663931   .0135079   -12.32   0.000    -.1933081   -.1394781
       1938  |  -.2903318   .0153057   -18.97   0.000     -.320829   -.2598346
       1939  |  -.4005809   .0152332   -26.30   0.000    -.4309337   -.3702282
       1940  |  -.5144686   .0139317   -36.93   0.000    -.5422282   -.4867091
       1941  |  -.5922229   .0119953   -49.37   0.000     -.616124   -.5683218
             |
       regno |
          2  |   .0402409   .0137904     2.92   0.005     .0127629    .0677188
          3  |   -.012743   .0075758    -1.68   0.097    -.0278381     .002352
          5  |  -.0275254   .0013464   -20.44   0.000    -.0302082   -.0248426
          6  |   .0521808   .0047764    10.92   0.000     .0426636    .0616979
          7  |  -.0816343   .0241333    -3.38   0.001    -.1297209   -.0335477
          8  |   .0132659    .004807     2.76   0.007     .0036877     .022844
          9  |   .0066937   .0041496     1.61   0.111    -.0015746    .0149619
         10  |   .0380046   .0059909     6.34   0.000     .0260675    .0499418
         11  |  -.0083912   .0027967    -3.00   0.004    -.0139639   -.0028186
         12  |   -.029585   .0073918    -4.00   0.000    -.0443135   -.0148564
         13  |  -.0559378   .0074346    -7.52   0.000    -.0707516    -.041124
         14  |   .0130474   .0012934    10.09   0.000     .0104702    .0156246
         15  |  -.0161882   .0016382    -9.88   0.000    -.0194524   -.0129239
         16  |  -.0825651   .0290775    -2.84   0.006    -.1405033   -.0246269
         17  |  -.0486816   .0249497    -1.95   0.055    -.0983949    .0010317
         18  |   .0015888   .0061198     0.26   0.796    -.0106052    .0137828
         19  |   .0109036   .0020458     5.33   0.000     .0068273    .0149799
         20  |  -.0043803   .0010501    -4.17   0.000    -.0064726    -.002288
         21  |  -.0232539   .0073265    -3.17   0.002    -.0378522   -.0086556
         22  |   .0060736   .0133824     0.45   0.651    -.0205915    .0327387
         23  |  -.0344809   .0081338    -4.24   0.000    -.0506879   -.0182739
         24  |  -.0096371   .0101069    -0.95   0.343    -.0297756    .0105013
         25  |   .0006401   .0090282     0.07   0.944    -.0173489    .0186292
         26  |  -.0271872   .0049775    -5.46   0.000    -.0371051   -.0172693
         27  |  -.0214235   .0070051    -3.06   0.003    -.0353814   -.0074656
         28  |    -.02966   .0184034    -1.61   0.111    -.0663295    .0070096
         29  |   .0282638   .0048802     5.79   0.000     .0185398    .0379879
         30  |  -.0169687   .0084397    -2.01   0.048    -.0337851   -.0001523
         31  |  -.0017726   .0028947    -0.61   0.542    -.0075404    .0039952
         32  |    .010424   .0016596     6.28   0.000     .0071171    .0137309
         33  |  -.0005645   .0008982    -0.63   0.532    -.0023542    .0012253
         34  |   .0900815   .0281245     3.20   0.002     .0340422    .1461209
         35  |  -.0386996   .0125449    -3.08   0.003    -.0636959   -.0137034
         36  |   .0271686   .0018086    15.02   0.000     .0235649    .0307722
         37  |   .0055626   .0112025     0.50   0.621     -.016759    .0278841
         38  |  -.0124085   .0027814    -4.46   0.000    -.0179506   -.0068665
         39  |   .0004728   .0154008     0.03   0.976    -.0302139    .0311594
         40  |  -.0080676   .0126823    -0.64   0.527    -.0333377    .0172024
         41  |   .0235283    .000679    34.65   0.000     .0221753    .0248812
         42  |   .0749131   .0183627     4.08   0.000     .0383246    .1115016
         43  |   .0451008   .0030008    15.03   0.000     .0391217    .0510799
         44  |   .0436031   .0104066     4.19   0.000     .0228674    .0643387
         46  |  -.0108483   .0068359    -1.59   0.117    -.0244691    .0027725
         47  |   .0463181   .0045153    10.26   0.000     .0373211    .0553151
         49  |    .011974   .0144399     0.83   0.410    -.0167981     .040746
         50  |   .0166707   .0046278     3.60   0.001     .0074495    .0258918
         51  |   .0020955   .0188266     0.11   0.912    -.0354174    .0396084
         52  |  -.0156636   .0140842    -1.11   0.270    -.0437269    .0123997
         53  |  -.0156211   .0039742    -3.93   0.000    -.0235399   -.0077022
         54  |   .0244682    .002172    11.27   0.000     .0201403    .0287961
         55  |    .001344   .0085711     0.16   0.876    -.0157344    .0184223
         56  |  -.0283338   .0184089    -1.54   0.128    -.0650144    .0083467
         58  |  -.0239546   .0245914    -0.97   0.333     -.072954    .0250448
         59  |  -.0076286   .0211502    -0.36   0.719    -.0497714    .0345141
         61  |  -.0006672   .0105247    -0.06   0.950    -.0216381    .0203038
         62  |    .017154   .0214704     0.80   0.427    -.0256268    .0599347
         63  |  -.0160658   .0144971    -1.11   0.271     -.044952    .0128203
         64  |   .0000187   .0082145     0.00   0.998     -.016349    .0163864
         65  |  -.0087258   .0016056    -5.43   0.000    -.0119251   -.0055265
         66  |   .0166928   .0017249     9.68   0.000     .0132558    .0201298
         69  |     .03387    .004333     7.82   0.000     .0252364    .0425037
         70  |   .1020094   .0222713     4.58   0.000     .0576329     .146386
         71  |   .0812573   .0062055    13.09   0.000     .0688925     .093622
         72  |    .010243   .0177322     0.58   0.565    -.0250892    .0455751
         75  |    .021492   .0172343     1.25   0.216    -.0128481    .0558322
         77  |   .0513102   .0042788    11.99   0.000     .0427846    .0598358
         79  |   .0530544   .0081298     6.53   0.000     .0368554    .0692533
         82  |   .0679744   .0116998     5.81   0.000     .0446621    .0912867
         83  |   .0563863    .010258     5.50   0.000     .0359468    .0768257
         84  |   .0785031   .0022783    34.46   0.000     .0739634    .0830428
         85  |   .1348627   .0089035    15.15   0.000     .1171221    .1526033
         87  |   .1011222   .0127138     7.95   0.000     .0757894     .126455
         88  |   .1162756   .0066679    17.44   0.000     .1029895    .1295617
         89  |   .0488817   .0011879    41.15   0.000     .0465148    .0512486
             |
       _cons |   .3518599   .0946645     3.72   0.000     .1632366    .5404831
------------------------------------------------------------------------------

. reg marrfu sr10u lnpopmu i.yob i.regno [aweight=popfu], cluster(regno);
(sum of wgt is   1.5724e+07)

Linear regression                               Number of obs     =      2,025
                                                F(27, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9925
                                                Root MSE          =     .01945

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrfu |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10u |   .1043752   .0403466     2.59   0.012      .023983    .1847675
     lnpopmu |   .0478805   .0095542     5.01   0.000     .0288433    .0669176
             |
         yob |
       1916  |   .0223778   .0021753    10.29   0.000     .0180435    .0267121
       1917  |   .0423298   .0033813    12.52   0.000     .0355924    .0490672
       1918  |   .0732902   .0047729    15.36   0.000       .06378    .0828004
       1919  |   .0662258   .0024387    27.16   0.000     .0613667     .071085
       1920  |   .0998278   .0039217    25.46   0.000     .0920136     .107642
       1921  |   .1111851   .0033946    32.75   0.000     .1044213    .1179488
       1922  |   .1319392   .0041329    31.92   0.000     .1237042    .1401741
       1923  |   .1348057   .0043643    30.89   0.000     .1261096    .1435019
       1924  |   .1356125   .0056248    24.11   0.000     .1244048    .1468201
       1925  |   .1333108   .0063669    20.94   0.000     .1206245     .145997
       1926  |   .1337404   .0077537    17.25   0.000     .1182907      .14919
       1927  |   .1220095   .0095213    12.81   0.000      .103038    .1409811
       1928  |   .1252037   .0100773    12.42   0.000     .1051243    .1452832
       1929  |   .1108666   .0114065     9.72   0.000     .0881386    .1335945
       1930  |   .1163962   .0105006    11.08   0.000     .0954733    .1373191
       1931  |   .1026954   .0111482     9.21   0.000     .0804823    .1249086
       1932  |   .0994593    .010873     9.15   0.000     .0777943    .1211243
       1933  |   .0710221   .0112821     6.30   0.000     .0485419    .0935023
       1934  |   .0418724   .0107062     3.91   0.000     .0205399     .063205
       1935  |  -.0107434   .0112554    -0.95   0.343    -.0331703    .0116836
       1936  |  -.0901641   .0125938    -7.16   0.000    -.1152578   -.0650703
       1937  |  -.1934128   .0139386   -13.88   0.000    -.2211861   -.1656394
       1938  |  -.3242862   .0161723   -20.05   0.000    -.3565103   -.2920622
       1939  |  -.4327145    .015038   -28.77   0.000    -.4626783   -.4027506
       1940  |  -.5412068    .014232   -38.03   0.000    -.5695647    -.512849
       1941  |  -.6118201   .0139013   -44.01   0.000    -.6395189   -.5841212
             |
       regno |
          2  |   .0257594   .0182362     1.41   0.162    -.0105771    .0620958
          3  |   -.029185   .0065945    -4.43   0.000    -.0423249   -.0160452
          5  |  -.0331151   .0012891   -25.69   0.000    -.0356837   -.0305464
          6  |   .0419849   .0043428     9.67   0.000     .0333316    .0506381
          7  |  -.1382316   .0200686    -6.89   0.000    -.1782192    -.098244
          8  |   .0029474   .0039574     0.74   0.459    -.0049379    .0108327
          9  |   .0156102   .0036411     4.29   0.000     .0083552    .0228653
         10  |   .0499128   .0051789     9.64   0.000     .0395935     .060232
         11  |  -.0160863   .0020169    -7.98   0.000     -.020105   -.0120676
         12  |  -.0473349   .0059378    -7.97   0.000    -.0591662   -.0355036
         13  |  -.0735824    .006973   -10.55   0.000    -.0874763   -.0596884
         14  |   .0152468   .0020398     7.47   0.000     .0111823    .0193112
         15  |  -.0146701   .0015236    -9.63   0.000    -.0177059   -.0116343
         16  |  -.1497212   .0238886    -6.27   0.000    -.1973203   -.1021221
         17  |  -.1056381   .0204784    -5.16   0.000    -.1464422    -.064834
         18  |   .0131887   .0059866     2.20   0.031       .00126    .0251173
         19  |   .0049504   .0021211     2.33   0.022     .0007241    .0091768
         20  |  -.0013098   .0011489    -1.14   0.258    -.0035991    .0009796
         21  |  -.0407776   .0060949    -6.69   0.000    -.0529219   -.0286332
         22  |  -.0221938   .0104871    -2.12   0.038    -.0430898   -.0012978
         23  |  -.0550271   .0064178    -8.57   0.000    -.0678148   -.0422394
         24  |   .0125449   .0083065     1.51   0.135    -.0040061    .0290959
         25  |   .0200485   .0078868     2.54   0.013     .0043338    .0357632
         26  |  -.0171441   .0044586    -3.85   0.000     -.026028   -.0082602
         27  |  -.0354382   .0054976    -6.45   0.000    -.0463924    -.024484
         28  |  -.0707159   .0145919    -4.85   0.000    -.0997909    -.041641
         29  |   .0389435   .0060929     6.39   0.000     .0268031    .0510838
         30  |  -.0381281   .0065203    -5.85   0.000    -.0511201   -.0251361
         31  |   .0008438   .0029966     0.28   0.779    -.0051271    .0068147
         32  |   .0122462   .0033239     3.68   0.000     .0056233    .0188692
         33  |  -.0020876   .0016443    -1.27   0.208    -.0053639    .0011887
         34  |   .1553373   .0238557     6.51   0.000     .1078038    .2028709
         35  |  -.0693589   .0099693    -6.96   0.000    -.0892232   -.0494946
         36  |   .0271001   .0033715     8.04   0.000     .0203823     .033818
         37  |  -.0187897   .0087888    -2.14   0.036    -.0363018   -.0012776
         38  |  -.0173248   .0020895    -8.29   0.000    -.0214882   -.0131615
         39  |  -.0338681   .0121359    -2.79   0.007    -.0580495   -.0096867
         40  |  -.0379004    .010045    -3.77   0.000    -.0579154   -.0178854
         41  |   .0256404   .0012995    19.73   0.000     .0230511    .0282298
         42  |   .1116142   .0151034     7.39   0.000     .0815199    .1417085
         43  |    .055616   .0047439    11.72   0.000     .0461636    .0650684
         44  |   .0667254   .0092727     7.20   0.000     .0482492    .0852016
         46  |  -.0024773   .0057075    -0.43   0.666    -.0138497    .0088951
         47  |   .0569341   .0041565    13.70   0.000     .0486522    .0652161
         49  |   -.020145   .0115673    -1.74   0.086    -.0431934    .0029034
         50  |   .0072202   .0037301     1.94   0.057    -.0002121    .0146525
         51  |  -.0367907   .0149906    -2.45   0.016    -.0666601   -.0069212
         52  |  -.0435394   .0112225    -3.88   0.000    -.0659007    -.021178
         53  |  -.0240375     .00297    -8.09   0.000    -.0299553   -.0181197
         54  |   .0305524   .0031581     9.67   0.000     .0242598     .036845
         55  |  -.0164748   .0068099    -2.42   0.018    -.0300439   -.0029058
         56  |  -.0671755   .0145709    -4.61   0.000    -.0962086   -.0381423
         58  |  -.0767322   .0196151    -3.91   0.000    -.1158161   -.0376484
         59  |  -.0518789   .0168606    -3.08   0.003    -.0854744   -.0182834
         61  |  -.0212123   .0084247    -2.52   0.014    -.0379989   -.0044256
         62  |  -.0243935   .0171549    -1.42   0.159    -.0585753    .0097883
         63  |  -.0472064   .0114294    -4.13   0.000      -.06998   -.0244328
         64  |   -.017004    .006496    -2.62   0.011    -.0299475   -.0040604
         65  |   -.012943   .0035373    -3.66   0.000    -.0199912   -.0058948
         66  |   .0214065   .0022669     9.44   0.000     .0168896    .0259234
         69  |   .0446369   .0045177     9.88   0.000     .0356352    .0536386
         70  |   .1532289   .0200494     7.64   0.000     .1132796    .1931783
         71  |   .0987734   .0067226    14.69   0.000     .0853784    .1121685
         72  |  -.0252297   .0148321    -1.70   0.093    -.0547833    .0043239
         75  |  -.0125246   .0145128    -0.86   0.391     -.041442    .0163929
         77  |   .0449916   .0035094    12.82   0.000     .0379989    .0519842
         79  |   .0578961   .0169813     3.41   0.001     .0240601    .0917322
         82  |   .0442817   .0092358     4.79   0.000      .025879    .0626845
         83  |   .0344562   .0078847     4.37   0.000     .0187455    .0501669
         84  |   .0781085   .0032871    23.76   0.000     .0715587    .0846582
         85  |   .1535716   .0110112    13.95   0.000     .1316313     .175512
         87  |   .1030099   .0236641     4.35   0.000     .0558581    .1501616
         88  |   .1072768   .0072876    14.72   0.000      .092756    .1217977
         89  |    .047701    .003665    13.02   0.000     .0403983    .0550037
             |
       _cons |   .1715704   .0747599     2.29   0.025      .022608    .3205329
------------------------------------------------------------------------------

. reg marrfu sr10u lnpopmu i.yob i.regno i.regno#c.time, cluster(regno);
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      2,025
                                                F(26, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9934
                                                Root MSE          =     .01702

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrfu |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10u |    .229011   .0268884     8.52   0.000     .1754347    .2825873
     lnpopmu |     .01881   .0076182     2.47   0.016     .0036304    .0339895
             |
         yob |
       1916  |   .0190318   .0021252     8.96   0.000     .0147973    .0232663
       1917  |   .0350735   .0031301    11.21   0.000     .0288366    .0413105
       1918  |   .0620688   .0045944    13.51   0.000     .0529142    .0712233
       1919  |   .0719213   .0022371    32.15   0.000     .0674637    .0763789
       1920  |   .1014875   .0038941    26.06   0.000     .0937283    .1092467
       1921  |   .1208507   .0030432    39.71   0.000      .114787    .1269144
       1922  |   .1434026   .0035299    40.63   0.000     .1363691     .150436
       1923  |   .1528334   .0030703    49.78   0.000     .1467158    .1589511
       1924  |   .1603228   .0029398    54.53   0.000     .1544651    .1661805
       1925  |   .1612738   .0032947    48.95   0.000     .1547089    .1678388
       1926  |   .1657341   .0040713    40.71   0.000     .1576219    .1738464
       1927  |   .1596596    .005946    26.85   0.000     .1478118    .1715073
       1928  |   .1614167   .0063606    25.38   0.000      .148743    .1740904
       1929  |   .1496641   .0076135    19.66   0.000     .1344937    .1648344
       1930  |   .1492222   .0067776    22.02   0.000     .1357176    .1627268
       1931  |   .1369837   .0074117    18.48   0.000     .1222155    .1517518
       1932  |    .130167    .006493    20.05   0.000     .1172295    .1431045
       1933  |   .1013222   .0068006    14.90   0.000     .0877716    .1148728
       1934  |   .0642626   .0063908    10.06   0.000     .0515286    .0769967
       1935  |   .0127302   .0071539     1.78   0.079    -.0015243    .0269846
       1936  |  -.0615383   .0083347    -7.38   0.000    -.0781456    -.044931
       1937  |   -.161525   .0088497   -18.25   0.000    -.1791583   -.1438916
       1938  |  -.2844961   .0105118   -27.06   0.000    -.3054415   -.2635508
       1939  |  -.3928301   .0100666   -39.02   0.000    -.4128882    -.372772
       1940  |  -.5057352   .0099996   -50.58   0.000    -.5256598   -.4858106
       1941  |  -.5822005   .0105944   -54.95   0.000    -.6033104   -.5610906
             |
       regno |
          2  |   .0049069   .0152377     0.32   0.748    -.0254548    .0352686
          3  |   .0145391   .0041302     3.52   0.001     .0063094    .0227687
          5  |   .0169582   .0016518    10.27   0.000     .0136669    .0202496
          6  |   .0587191   .0016595    35.38   0.000     .0554125    .0620257
          7  |  -.0230557   .0185882    -1.24   0.219    -.0600935     .013982
          8  |   .0148141   .0058253     2.54   0.013      .003207    .0264212
          9  |   .0168472   .0005946    28.34   0.000     .0156625    .0180319
         10  |   .0453192   .0018977    23.88   0.000     .0415379    .0491005
         11  |   .0023933   .0046384     0.52   0.607    -.0068489    .0116355
         12  |  -.0140331   .0068112    -2.06   0.043    -.0276047   -.0004615
         13  |  -.0432151   .0068295    -6.33   0.000    -.0568232   -.0296069
         14  |   .0184835   .0018215    10.15   0.000     .0148541    .0221128
         15  |  -.0036415   .0002807   -12.97   0.000    -.0042008   -.0030823
         16  |  -.0289869   .0218806    -1.32   0.189    -.0725849     .014611
         17  |  -.0208946   .0189685    -1.10   0.274    -.0586901    .0169009
         18  |   .0181322   .0031976     5.67   0.000     .0117607    .0245036
         19  |   .0292246   .0032301     9.05   0.000     .0227886    .0356607
         20  |  -.0066721   .0022482    -2.97   0.004    -.0111516   -.0021925
         21  |  -.0074212   .0068347    -1.09   0.281    -.0210397    .0061973
         22  |   -.004003   .0117169    -0.34   0.734    -.0273494    .0193434
         23  |   .0022283    .007225     0.31   0.759    -.0121677    .0166244
         24  |  -.0138242   .0054741    -2.53   0.014    -.0247317   -.0029168
         25  |  -.0035658   .0042234    -0.84   0.401    -.0119812    .0048495
         26  |  -.0240831   .0024586    -9.80   0.000    -.0289819   -.0191842
         27  |  -.0186907   .0055307    -3.38   0.001    -.0297109   -.0076705
         28  |  -.0116401   .0140291    -0.83   0.409    -.0395937    .0163136
         29  |   .0254242   .0034915     7.28   0.000     .0184672    .0323812
         30  |   .0049317    .008736     0.56   0.574    -.0124752    .0223386
         31  |   .0273313    .002614    10.46   0.000     .0221228    .0325397
         32  |   .0111845   .0022118     5.06   0.000     .0067775    .0155916
         33  |   .0121865   .0033184     3.67   0.000     .0055744    .0187985
         34  |   .0566762   .0185215     3.06   0.003     .0197713    .0935811
         35  |   -.015305   .0098364    -1.56   0.124    -.0349045    .0042945
         36  |      .0461   .0013868    33.24   0.000     .0433367    .0488632
         37  |   .0028452   .0096937     0.29   0.770    -.0164699    .0221602
         38  |  -.0169036   .0040042    -4.22   0.000    -.0248823    -.008925
         39  |   .0020467   .0131039     0.16   0.876    -.0240635    .0281568
         40  |   .0079638   .0104877     0.76   0.450    -.0129334    .0288611
         41  |    .007203   .0028655     2.51   0.014     .0014934    .0129126
         42  |   .0759848    .008689     8.74   0.000     .0586716    .0932981
         43  |   .0142461   .0021555     6.61   0.000     .0099511     .018541
         44  |   .0289534   .0050025     5.79   0.000     .0189858     .038921
         46  |   .0357323   .0031344    11.40   0.000     .0294868    .0419778
         47  |   .0216909   .0022965     9.45   0.000     .0171149    .0262668
         49  |  -.0004112    .013993    -0.03   0.977    -.0282929    .0274706
         50  |  -.0052644   .0077653    -0.68   0.500    -.0207372    .0102084
         51  |  -.0061658   .0137144    -0.45   0.654    -.0334922    .0211607
         52  |  -.0332122   .0104166    -3.19   0.002    -.0539677   -.0124567
         53  |  -.0208192   .0043083    -4.83   0.000    -.0294037   -.0122347
         54  |   .0086579   .0018199     4.76   0.000     .0050316    .0122842
         55  |  -.0035673   .0066704    -0.53   0.594    -.0168584    .0097238
         56  |  -.0267865   .0132127    -2.03   0.046    -.0531134   -.0004596
         58  |  -.0196631    .017346    -1.13   0.261    -.0542258    .0148995
         59  |  -.0145326   .0149687    -0.97   0.335    -.0443583    .0152931
         61  |  -.0160028    .007865    -2.03   0.045    -.0316741   -.0003315
         62  |  -.0140804   .0144814    -0.97   0.334    -.0429353    .0147745
         63  |  -.0156762   .0107344    -1.46   0.148    -.0370651    .0057126
         64  |   -.003053   .0071635    -0.43   0.671    -.0173265    .0112206
         65  |   .0049815   .0020341     2.45   0.017     .0009285    .0090346
         66  |     .00303   .0020798     1.46   0.149    -.0011142    .0071742
         69  |   .0108542   .0046042     2.36   0.021     .0016802    .0200283
         70  |   .0476887   .0136798     3.49   0.001      .020431    .0749464
         71  |   .0300333   .0039847     7.54   0.000     .0220937     .037973
         72  |   .0071598    .012709     0.56   0.575    -.0181635     .032483
         75  |   .0172163   .0139888     1.23   0.222    -.0106571    .0450897
         77  |     .02676   .0057297     4.67   0.000     .0153434    .0381766
         79  |   .0126379   .0157459     0.80   0.425    -.0187364    .0440122
         82  |   .0642198   .0105963     6.06   0.000     .0431061    .0853334
         83  |   .0501489    .012236     4.10   0.000     .0257681    .0745296
         84  |   .0452735   .0083476     5.42   0.000     .0286406    .0619064
         85  |   .0816016   .0096986     8.41   0.000     .0622768    .1009265
         87  |  -.0755459   .0316315    -2.39   0.019    -.1385731   -.0125187
         88  |   .0513701    .011224     4.58   0.000     .0290057    .0737345
         89  |   .0382064   .0015241    25.07   0.000     .0351696    .0412433
             |
regno#c.time |
          1  |  -.0013383   .0002344    -5.71   0.000    -.0018053   -.0008712
          2  |  -.0026311   .0001799   -14.62   0.000    -.0029896   -.0022725
          3  |  -.0040818   .0004517    -9.04   0.000    -.0049818   -.0031819
          5  |  -.0049634   .0003149   -15.76   0.000    -.0055908    -.004336
          6  |  -.0023442    .000365    -6.42   0.000    -.0030715   -.0016168
          7  |  -.0049111   .0002336   -21.02   0.000    -.0053765   -.0044456
          8  |  -.0012639   .0001856    -6.81   0.000    -.0016337    -.000894
          9  |  -.0023145   .0002402    -9.64   0.000    -.0027931    -.001836
         10  |  -.0017744   .0002088    -8.50   0.000    -.0021905   -.0013584
         11  |  -.0021787    .000139   -15.68   0.000    -.0024555   -.0019018
         12  |  -.0023162   .0001426   -16.24   0.000    -.0026003    -.002032
         13  |  -.0015452   .0001964    -7.87   0.000    -.0019366   -.0011539
         14  |  -.0021746   .0001997   -10.89   0.000    -.0025725   -.0017766
         15  |  -.0022909   .0002021   -11.33   0.000    -.0026937   -.0018881
         16  |  -.0046607   .0002097   -22.22   0.000    -.0050786   -.0042428
         17  |  -.0027691   .0001592   -17.40   0.000    -.0030863   -.0024519
         18  |  -.0032875   .0001572   -20.92   0.000    -.0036007   -.0029743
         19  |  -.0031948   .0001852   -17.25   0.000    -.0035638   -.0028259
         20  |  -.0012524   .0002059    -6.08   0.000    -.0016627   -.0008421
         21  |  -.0022019   .0002073   -10.62   0.000     -.002615   -.0017889
         22  |  -.0008465   .0001724    -4.91   0.000    -.0011901    -.000503
         23  |  -.0040917   .0002447   -16.72   0.000    -.0045793    -.003604
         24  |  -.0010954   .0001572    -6.97   0.000    -.0014087   -.0007821
         25  |  -.0014652   .0001413   -10.37   0.000    -.0017468   -.0011837
         26  |  -.0018337   .0001157   -15.84   0.000    -.0020643   -.0016031
         27  |  -.0017784   .0002823    -6.30   0.000     -.002341   -.0012159
         28  |  -.0027201   .0001973   -13.78   0.000    -.0031133   -.0023269
         29  |  -.0021829   .0001932   -11.30   0.000    -.0025678    -.001798
         30  |   -.003127   .0001525   -20.51   0.000    -.0034309   -.0028232
         31  |  -.0039534   .0001629   -24.27   0.000     -.004278   -.0036288
         32  |  -.0021222   .0002136    -9.93   0.000    -.0025479   -.0016965
         33  |  -.0027532   .0002117   -13.00   0.000    -.0031751   -.0023314
         34  |  -.0001096    .000241    -0.45   0.650    -.0005898    .0003705
         35  |  -.0030937   .0001299   -23.81   0.000    -.0033526   -.0028348
         36  |  -.0035109   .0002815   -12.47   0.000    -.0040717     -.00295
         37  |  -.0013896    .000124   -11.21   0.000    -.0016367   -.0011425
         38  |   -.001251   .0001617    -7.74   0.000    -.0015732   -.0009287
         39  |  -.0017558   .0001283   -13.69   0.000    -.0020114   -.0015002
         40  |  -.0027866    .000187   -14.90   0.000    -.0031592    -.002414
         41  |  -.0004073   .0001691    -2.41   0.018    -.0007442   -.0000705
         42  |  -.0019115   .0002096    -9.12   0.000    -.0023291   -.0014939
         43  |   .0001379   .0002675     0.52   0.608    -.0003951    .0006708
         44  |  -.0009203   .0001576    -5.84   0.000    -.0012343   -.0006064
         46  |  -.0050971   .0001443   -35.33   0.000    -.0053846   -.0048097
         47  |     .00021   .0001461     1.44   0.155    -.0000812    .0005012
         49  |  -.0003312   .0002392    -1.38   0.170    -.0008078    .0001454
         50  |  -.0000962   .0002334    -0.41   0.682    -.0005613     .000369
         51  |  -.0009041   .0001975    -4.58   0.000    -.0012976   -.0005106
         52  |  -.0002297   .0001357    -1.69   0.095    -.0005002    .0000408
         53  |  -.0010442   .0001366    -7.64   0.000    -.0013164    -.000772
         54  |  -.0007168   .0002038    -3.52   0.001    -.0011228   -.0003107
         55  |  -.0012477   .0001922    -6.49   0.000    -.0016308   -.0008647
         56  |  -.0018541   .0002157    -8.59   0.000    -.0022839   -.0014242
         58  |  -.0017187   .0001897    -9.06   0.000    -.0020966   -.0013408
         59  |   -.001074   .0001639    -6.55   0.000    -.0014005   -.0007475
         61  |  -.0005761   .0002035    -2.83   0.006    -.0009816   -.0001707
         62  |   .0003636   .0002899     1.25   0.214     -.000214    .0009412
         63  |  -.0015663   .0001738    -9.01   0.000    -.0019125   -.0012201
         64  |  -.0016435   .0001354   -12.14   0.000    -.0019133   -.0013736
         65  |  -.0031458   .0002444   -12.87   0.000    -.0036327   -.0026589
         66  |  -.0006852   .0001516    -4.52   0.000    -.0009873   -.0003831
         69  |  -.0002215   .0000829    -2.67   0.009    -.0003867   -.0000562
         70  |   .0011195   .0000856    13.08   0.000     .0009489      .00129
         71  |    .001633   .0001669     9.79   0.000     .0013005    .0019655
         72  |  -.0025284   .0002512   -10.07   0.000    -.0030289    -.002028
         75  |  -.0026681   .0001591   -16.77   0.000    -.0029852   -.0023511
         77  |  -1.17e-06   .0000776    -0.02   0.988    -.0001558    .0001534
         79  |  -.0021919    .000236    -9.29   0.000    -.0026622   -.0017217
         82  |  -.0018957   .0000798   -23.77   0.000    -.0020547   -.0017368
         83  |  -.0016626   .0001968    -8.45   0.000    -.0020548   -.0012705
         84  |   .0002938   .0002182     1.35   0.182    -.0001409    .0007285
         85  |   .0006346   .0001082     5.86   0.000      .000419    .0008502
         87  |    .006217   .0009527     6.53   0.000     .0043188    .0081153
         88  |   .0019709   .0001848    10.67   0.000     .0016027    .0023391
         89  |          0  (omitted)
             |
       _cons |   .3050995   .0630391     4.84   0.000     .1794914    .4307076
------------------------------------------------------------------------------

. reg marrfu sr10u lnpopmu i.yob i.regno i.regno#c.time [aweight=popfu], cluster(regno);
(sum of wgt is   1.5724e+07)
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      2,025
                                                F(26, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9955
                                                Root MSE          =     .01531

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrfu |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10u |   .2128431   .0318376     6.69   0.000     .1494052     .276281
     lnpopmu |   .0095579   .0133658     0.72   0.477    -.0170741    .0361899
             |
         yob |
       1916  |   .0166728   .0024303     6.86   0.000     .0118303    .0215152
       1917  |     .03297   .0040206     8.20   0.000     .0249587    .0409812
       1918  |   .0595863   .0060274     9.89   0.000     .0475764    .0715961
       1919  |   .0704859    .002655    26.55   0.000     .0651958     .075776
       1920  |   .0950407   .0046257    20.55   0.000     .0858238    .1042576
       1921  |   .1141922   .0038244    29.86   0.000      .106572    .1218125
       1922  |    .135156   .0045737    29.55   0.000     .1260427    .1442693
       1923  |   .1452621   .0040002    36.31   0.000     .1372915    .1532326
       1924  |   .1545612   .0048419    31.92   0.000     .1449135    .1642088
       1925  |   .1575603   .0066085    23.84   0.000     .1443925    .1707281
       1926  |   .1630244   .0085551    19.06   0.000      .145978    .1800708
       1927  |   .1605255   .0127185    12.62   0.000     .1351833    .1858677
       1928  |   .1635499   .0136102    12.02   0.000     .1364311    .1906688
       1929  |   .1537299   .0156901     9.80   0.000     .1224667    .1849931
       1930  |   .1526669   .0140445    10.87   0.000     .1246826    .1806513
       1931  |   .1411986   .0148481     9.51   0.000     .1116131    .1707841
       1932  |   .1311064   .0127185    10.31   0.000     .1057643    .1564486
       1933  |   .1024822   .0123941     8.27   0.000     .0777865    .1271779
       1934  |   .0663401   .0106609     6.22   0.000     .0450977    .0875825
       1935  |   .0132107   .0105199     1.26   0.213    -.0077506    .0341721
       1936  |  -.0601814   .0119647    -5.03   0.000    -.0840217   -.0363412
       1937  |  -.1592214   .0129851   -12.26   0.000    -.1850947   -.1333481
       1938  |  -.2821684     .01535   -18.38   0.000     -.312754   -.2515828
       1939  |   -.388769   .0167089   -23.27   0.000    -.4220621   -.3554758
       1940  |  -.4983958   .0183275   -27.19   0.000    -.5349141   -.4618774
       1941  |  -.5727085   .0186711   -30.67   0.000    -.6099116   -.5355055
             |
       regno |
          2  |   .0171425   .0168414     1.02   0.312    -.0164147    .0506998
          3  |   .0227233    .007412     3.07   0.003     .0079546    .0374921
          5  |   .0210472   .0031652     6.65   0.000     .0147403     .027354
          6  |    .060258   .0022974    26.23   0.000     .0556802    .0648357
          7  |  -.0023242    .032389    -0.07   0.943    -.0668608    .0622123
          8  |   .0214235    .010088     2.12   0.037     .0013228    .0415242
          9  |   .0161502   .0010959    14.74   0.000     .0139667    .0183338
         10  |   .0467263   .0026089    17.91   0.000      .041528    .0519246
         11  |   .0057134   .0071321     0.80   0.426    -.0084976    .0199244
         12  |  -.0076673    .012068    -0.64   0.527    -.0317133    .0163788
         13  |  -.0386729   .0124785    -3.10   0.003    -.0635369   -.0138089
         14  |   .0222922    .002422     9.20   0.000     .0174662    .0271182
         15  |   -.004683   .0012298    -3.81   0.000    -.0071335   -.0022325
         16  |  -.0073465   .0379305    -0.19   0.847    -.0829248    .0682318
         17  |  -.0019761     .03294    -0.06   0.952    -.0676106    .0636583
         18  |   .0191505   .0056055     3.42   0.001     .0079812    .0303198
         19  |   .0340349   .0046793     7.27   0.000     .0247112    .0433585
         20  |  -.0014206   .0035491    -0.40   0.690    -.0084922    .0056511
         21  |   .0002488   .0122317     0.02   0.984    -.0241234     .024621
         22  |   .0060925   .0194498     0.31   0.755    -.0326622    .0448471
         23  |     .00921   .0128004     0.72   0.474    -.0162954    .0347154
         24  |  -.0201389   .0094867    -2.12   0.037    -.0390416   -.0012363
         25  |  -.0111008   .0075943    -1.46   0.148    -.0262327    .0040312
         26  |  -.0307333   .0040306    -7.62   0.000    -.0387645   -.0227021
         27  |  -.0122192   .0098493    -1.24   0.219    -.0318443    .0074059
         28  |    .002272   .0239599     0.09   0.925     -.045469    .0500131
         29  |   .0240481    .004932     4.88   0.000     .0142208    .0338753
         30  |   .0119026    .014078     0.85   0.401    -.0161484    .0399536
         31  |   .0274614   .0034948     7.86   0.000     .0204979    .0344248
         32  |   .0072623   .0029033     2.50   0.015     .0014774    .0130471
         33  |   .0127812   .0047683     2.68   0.009       .00328    .0222823
         34  |   .0366031   .0331576     1.10   0.273    -.0294649    .1026711
         35  |  -.0093484   .0167867    -0.56   0.579    -.0427967       .0241
         36  |   .0443489   .0018507    23.96   0.000     .0406614    .0480365
         37  |   .0072117   .0157964     0.46   0.649    -.0242634    .0386868
         38  |  -.0145316   .0061985    -2.34   0.022    -.0268824   -.0021808
         39  |   .0114078   .0214675     0.53   0.597     -.031367    .0541827
         40  |   .0179132   .0173396     1.03   0.305    -.0166367    .0524631
         41  |   .0073009   .0044176     1.65   0.103    -.0015015    .0161032
         42  |   .0618318   .0163716     3.78   0.000     .0292106     .094453
         43  |   .0015902   .0037701     0.42   0.674    -.0059219    .0091024
         44  |   .0221229   .0093297     2.37   0.020     .0035331    .0407127
         46  |   .0271305   .0062472     4.34   0.000     .0146827    .0395783
         47  |   .0138858    .003535     3.93   0.000     .0068421    .0209295
         49  |   .0113154   .0227158     0.50   0.620    -.0339469    .0565776
         50  |  -.0016855   .0114895    -0.15   0.884    -.0245787    .0212078
         51  |   .0048614   .0229508     0.21   0.833    -.0408692    .0505919
         52  |  -.0291264    .017441    -1.67   0.099    -.0638783    .0056255
         53  |   -.023195   .0071082    -3.26   0.002    -.0373584   -.0090316
         54  |   .0023425   .0030129     0.78   0.439    -.0036609    .0083458
         55  |  -.0007696   .0107398    -0.07   0.943    -.0221691    .0206299
         56  |  -.0163943   .0222575    -0.74   0.464    -.0607433    .0279547
         58  |  -.0044719   .0295184    -0.15   0.880    -.0632887    .0543448
         59  |  -.0035668   .0247836    -0.14   0.886    -.0529492    .0458156
         61  |  -.0139793    .012362    -1.13   0.262    -.0386112    .0106526
         62  |  -.0079068   .0240467    -0.33   0.743    -.0558209    .0400073
         63  |  -.0079449   .0175729    -0.45   0.653    -.0429596    .0270697
         64  |  -.0000167   .0108456    -0.00   0.999     -.021627    .0215937
         65  |   .0047672   .0026755     1.78   0.079    -.0005639    .0100983
         66  |   .0013164   .0028332     0.46   0.644    -.0043288    .0069617
         69  |    .005474   .0065684     0.83   0.407    -.0076137    .0185618
         70  |   .0214433   .0248331     0.86   0.391    -.0280377    .0709243
         71  |      .0177   .0068981     2.57   0.012     .0039552    .0314447
         72  |   .0157218   .0192196     0.82   0.416    -.0225741    .0540176
         75  |   .0249647   .0206175     1.21   0.230    -.0161167     .066046
         77  |   .0270245   .0071956     3.76   0.000     .0126871     .041362
         79  |   .0119011   .0187689     0.63   0.528    -.0254968     .049299
         82  |   .0730674   .0145725     5.01   0.000     .0440311    .1021038
         83  |   .0592394   .0162657     3.64   0.000     .0268293    .0916495
         84  |   .0487054   .0093907     5.19   0.000     .0299941    .0674168
         85  |   .0645372   .0137928     4.68   0.000     .0370544      .09202
         87  |  -.0581057   .0347451    -1.67   0.099    -.1273368    .0111255
         88  |   .0482167   .0134015     3.60   0.001     .0215136    .0749198
         89  |   .0405504   .0012241    33.13   0.000     .0381113    .0429894
             |
regno#c.time |
          1  |  -.0011825   .0002119    -5.58   0.000    -.0016048   -.0007603
          2  |  -.0023836   .0002512    -9.49   0.000     -.002884   -.0018831
          3  |  -.0039961   .0004616    -8.66   0.000    -.0049158   -.0030763
          5  |   -.004958    .000289   -17.15   0.000    -.0055339   -.0043821
          6  |   -.001891   .0004564    -4.14   0.000    -.0028003   -.0009817
          7  |  -.0049977   .0002971   -16.82   0.000    -.0055898   -.0044056
          8  |  -.0012881    .000274    -4.70   0.000    -.0018341   -.0007421
          9  |  -.0023281   .0002909    -8.00   0.000    -.0029076   -.0017485
         10  |  -.0020789   .0003664    -5.67   0.000    -.0028091   -.0013487
         11  |  -.0021532   .0002044   -10.53   0.000    -.0025605   -.0017459
         12  |  -.0022278   .0001852   -12.03   0.000    -.0025969   -.0018587
         13  |  -.0013811   .0002221    -6.22   0.000    -.0018236   -.0009385
         14  |  -.0023483   .0002104   -11.16   0.000    -.0027676    -.001929
         15  |  -.0022254   .0001729   -12.87   0.000    -.0025699    -.001881
         16  |  -.0045386    .000285   -15.93   0.000    -.0051064   -.0039708
         17  |   -.002629   .0002416   -10.88   0.000    -.0031104   -.0021477
         18  |  -.0035288   .0001724   -20.46   0.000    -.0038724   -.0031853
         19  |  -.0033114   .0001713   -19.34   0.000    -.0036527   -.0029702
         20  |  -.0015103   .0002976    -5.07   0.000    -.0021032   -.0009173
         21  |  -.0022392   .0002438    -9.18   0.000     -.002725   -.0017533
         22  |  -.0007016   .0002611    -2.69   0.009    -.0012218   -.0001813
         23  |  -.0040069   .0002658   -15.08   0.000    -.0045364   -.0034773
         24  |  -.0010757   .0001251    -8.60   0.000     -.001325   -.0008263
         25  |  -.0013328   .0002081    -6.41   0.000    -.0017474   -.0009182
         26  |  -.0015185   .0001823    -8.33   0.000    -.0018817   -.0011554
         27  |  -.0016867   .0002611    -6.46   0.000     -.002207   -.0011664
         28  |  -.0025634   .0002159   -11.87   0.000    -.0029937   -.0021332
         29  |  -.0021757   .0002532    -8.59   0.000    -.0026803   -.0016712
         30  |  -.0030633   .0002446   -12.53   0.000    -.0035506    -.002576
         31  |  -.0040025   .0002456   -16.29   0.000     -.004492    -.003513
         32  |  -.0017881   .0001994    -8.97   0.000    -.0021854   -.0013909
         33  |  -.0026944   .0002816    -9.57   0.000    -.0032555   -.0021332
         34  |  -.0000647   .0002244    -0.29   0.774    -.0005118    .0003824
         35  |  -.0027198   .0001117   -24.35   0.000    -.0029424   -.0024972
         36  |  -.0034329   .0002918   -11.77   0.000    -.0040143   -.0028516
         37  |  -.0009742   .0001434    -6.80   0.000    -.0012598   -.0006885
         38  |  -.0011122   .0001598    -6.96   0.000    -.0014306   -.0007938
         39  |  -.0014819   .0002066    -7.17   0.000    -.0018936   -.0010701
         40  |  -.0026937   .0001823   -14.78   0.000    -.0030569   -.0023305
         41  |  -.0003064   .0002309    -1.33   0.189    -.0007665    .0001537
         42  |  -.0019429    .000307    -6.33   0.000    -.0025546   -.0013312
         43  |   .0010503   .0002299     4.57   0.000     .0005921    .0015084
         44  |  -.0009098   .0002246    -4.05   0.000    -.0013573   -.0004623
         46  |  -.0047748   .0001185   -40.31   0.000    -.0050108   -.0045387
         47  |   .0005551   .0002067     2.69   0.009     .0001433     .000967
         49  |   -.000288   .0003792    -0.76   0.450    -.0010436    .0004677
         50  |   8.74e-07   .0003636     0.00   0.998    -.0007236    .0007253
         51  |  -.0004848   .0001625    -2.98   0.004    -.0008085   -.0001611
         52  |   .0003495   .0000572     6.11   0.000     .0002355    .0004636
         53  |  -.0005879   .0001141    -5.15   0.000    -.0008152   -.0003606
         54  |   -.000268   .0001629    -1.65   0.104    -.0005926    .0000565
         55  |  -.0008515   .0001513    -5.63   0.000    -.0011531     -.00055
         56  |  -.0014279   .0001778    -8.03   0.000    -.0017822   -.0010736
         58  |  -.0012909   .0001488    -8.68   0.000    -.0015874   -.0009945
         59  |  -.0005367   .0001194    -4.50   0.000    -.0007746   -.0002988
         61  |  -.0000482   .0001754    -0.28   0.784    -.0003977    .0003012
         62  |   .0012212   .0002777     4.40   0.000     .0006678    .0017746
         63  |  -.0012013   .0001328    -9.04   0.000     -.001466   -.0009366
         64  |  -.0012826   .0000765   -16.76   0.000    -.0014351   -.0011301
         65  |  -.0030135   .0002371   -12.71   0.000     -.003486   -.0025411
         66  |  -.0005642   .0001449    -3.89   0.000    -.0008529   -.0002754
         69  |    .000017   .0001485     0.11   0.909     -.000279    .0003129
         70  |   .0016944   .0001663    10.19   0.000      .001363    .0020257
         71  |   .0022064   .0001454    15.17   0.000     .0019166    .0024962
         72  |  -.0019643    .000242    -8.12   0.000    -.0024465   -.0014822
         75  |  -.0020775   .0001175   -17.68   0.000    -.0023116   -.0018433
         77  |   .0003266   .0000586     5.57   0.000     .0002097    .0004434
         79  |  -.0018582   .0004025    -4.62   0.000    -.0026603   -.0010562
         82  |  -.0016885   .0000727   -23.24   0.000    -.0018333   -.0015438
         83  |  -.0016195   .0002613    -6.20   0.000    -.0021401   -.0010988
         84  |    .000212   .0002846     0.74   0.459    -.0003551    .0007791
         85  |   .0014284   .0001119    12.77   0.000     .0012055    .0016513
         87  |   .0057153    .001202     4.75   0.000     .0033203    .0081103
         88  |   .0025161   .0002884     8.72   0.000     .0019414    .0030909
         89  |          0  (omitted)
             |
       _cons |   .3900939   .1016879     3.84   0.000     .1874764    .5927113
------------------------------------------------------------------------------

. *  Rural age 18-44;
. reg marrfr sr10r lnpopmr i.yob i.regno, cluster(regno);

Linear regression                               Number of obs     =      1,971
                                                F(27, 72)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9688
                                                Root MSE          =      .0319

                                 (Std. Err. adjusted for 73 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrfr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10r |   .1363094   .0454383     3.00   0.004     .0457299    .2268889
     lnpopmr |   .0066928   .0138771     0.48   0.631    -.0209707    .0343564
             |
         yob |
       1916  |   .0163337   .0030041     5.44   0.000      .010345    .0223224
       1917  |   .0360708   .0051793     6.96   0.000     .0257462    .0463955
       1918  |   .0645753   .0069335     9.31   0.000     .0507536     .078397
       1919  |   .0696769   .0026191    26.60   0.000     .0644559    .0748979
       1920  |    .100575   .0049648    20.26   0.000     .0906778    .1104722
       1921  |   .1199162   .0040451    29.64   0.000     .1118524    .1279799
       1922  |   .1493634   .0048689    30.68   0.000     .1396575    .1590693
       1923  |   .1590289   .0045619    34.86   0.000     .1499348    .1681229
       1924  |   .1739765   .0060995    28.52   0.000     .1618173    .1861356
       1925  |   .1811573   .0076225    23.77   0.000     .1659622    .1963524
       1926  |    .190306   .0091746    20.74   0.000     .1720168    .2085953
       1927  |   .1897679   .0121044    15.68   0.000     .1656382    .2138976
       1928  |   .1965841   .0133448    14.73   0.000     .1699817    .2231865
       1929  |   .1815289    .016043    11.32   0.000     .1495477    .2135101
       1930  |   .1870189   .0155695    12.01   0.000     .1559817    .2180561
       1931  |   .1760285   .0171557    10.26   0.000     .1418293    .2102278
       1932  |   .1719684   .0167568    10.26   0.000     .1385644    .2053725
       1933  |   .1458472   .0169566     8.60   0.000     .1120447    .1796496
       1934  |   .1131663   .0178193     6.35   0.000     .0776442    .1486885
       1935  |     .07601   .0185571     4.10   0.000      .039017    .1130029
       1936  |   .0233292   .0212021     1.10   0.275    -.0189365    .0655949
       1937  |  -.0490445   .0226453    -2.17   0.034     -.094187   -.0039019
       1938  |  -.1412194   .0240745    -5.87   0.000    -.1892109   -.0932278
       1939  |  -.2487478   .0252412    -9.85   0.000    -.2990652   -.1984304
       1940  |  -.3762917   .0247119   -15.23   0.000     -.425554   -.3270294
       1941  |  -.4826068   .0242933   -19.87   0.000    -.5310347    -.434179
             |
       regno |
          2  |  -.0589055   .0115257    -5.11   0.000    -.0818815   -.0359295
          3  |  -.0290642    .012101    -2.40   0.019    -.0531872   -.0049412
          5  |  -.0901237   .0160713    -5.61   0.000    -.1221611   -.0580862
          6  |   .0599217   .0230064     2.60   0.011     .0140592    .1057842
          8  |  -.0252321   .0135078    -1.87   0.066    -.0521595    .0016952
          9  |  -.0845233     .00913    -9.26   0.000    -.1027236   -.0663229
         10  |  -.0519253   .0137809    -3.77   0.000    -.0793971   -.0244536
         11  |  -.0935568   .0194994    -4.80   0.000    -.1324282   -.0546854
         12  |  -.0628914   .0124258    -5.06   0.000    -.0876617   -.0381211
         13  |  -.0825694   .0086583    -9.54   0.000    -.0998294   -.0653094
         14  |  -.0755441   .0127989    -5.90   0.000    -.1010582   -.0500301
         15  |  -.0746061   .0106241    -7.02   0.000    -.0957849   -.0534273
         17  |  -.0491262   .0319781    -1.54   0.129    -.1128734    .0146209
         18  |   -.065525   .0143166    -4.58   0.000    -.0940647   -.0369854
         19  |  -.0544536   .0182803    -2.98   0.004    -.0908947   -.0180124
         20  |   -.088131   .0156218    -5.64   0.000    -.1192724   -.0569896
         21  |  -.0743204   .0186793    -3.98   0.000    -.1115568   -.0370839
         22  |  -.0327962   .0152991    -2.14   0.035    -.0632943   -.0022981
         23  |  -.0875652   .0119437    -7.33   0.000    -.1113745   -.0637559
         24  |  -.0984635   .0115836    -8.50   0.000     -.121555    -.075372
         25  |  -.0991399   .0167999    -5.90   0.000      -.13263   -.0656498
         26  |  -.1286849   .0179065    -7.19   0.000    -.1643809    -.092989
         27  |  -.0806437    .020912    -3.86   0.000    -.1223309   -.0389565
         28  |  -.0859936    .026387    -3.26   0.002    -.1385952    -.033392
         29  |  -.0833452   .0191448    -4.35   0.000    -.1215096   -.0451809
         30  |  -.0758404   .0243208    -3.12   0.003    -.1243231   -.0273577
         31  |   -.057212   .0208242    -2.75   0.008    -.0987242   -.0156998
         32  |  -.0798023   .0159367    -5.01   0.000    -.1115716    -.048033
         33  |   -.048325    .019637    -2.46   0.016    -.0874707   -.0091794
         34  |   .0217106   .0086923     2.50   0.015     .0043828    .0390383
         35  |  -.0863504   .0248314    -3.48   0.001    -.1358509   -.0368498
         36  |   .0177554   .0034672     5.12   0.000     .0108436    .0246671
         37  |  -.0129066   .0153825    -0.84   0.404    -.0435711    .0177579
         38  |  -.0582072   .0184356    -3.16   0.002    -.0949578   -.0214566
         39  |  -.0159417   .0153184    -1.04   0.302    -.0464783     .014595
         40  |  -.0060979   .0179763    -0.34   0.735     -.041933    .0297372
         41  |  -.0406342   .0136542    -2.98   0.004    -.0678532   -.0134151
         42  |   .0028874   .0072893     0.40   0.693    -.0116436    .0174184
         43  |   .0554232   .0132192     4.19   0.000     .0290712    .0817751
         44  |   .0256815   .0035344     7.27   0.000     .0186358    .0327272
         46  |  -.0461175   .0049017    -9.41   0.000    -.0558889   -.0363462
         47  |   .0728687   .0040602    17.95   0.000     .0647748    .0809627
         49  |  -.0045204   .0298674    -0.15   0.880    -.0640599    .0550192
         50  |  -.0005432   .0221145    -0.02   0.980    -.0446275    .0435412
         51  |   .0037333    .022908     0.16   0.871    -.0419329    .0493995
         52  |  -.0418751   .0274152    -1.53   0.131    -.0965263    .0127761
         53  |  -.0861748   .0156194    -5.52   0.000    -.1173115   -.0550381
         54  |  -.0190771   .0133612    -1.43   0.158    -.0457121     .007558
         55  |  -.0186808   .0178272    -1.05   0.298    -.0542186     .016857
         56  |  -.0529735   .0209414    -2.53   0.014    -.0947193   -.0112277
         58  |  -.0296159   .0188013    -1.58   0.120    -.0670956    .0078638
         59  |   .0246622   .0132284     1.86   0.066    -.0017081    .0510325
         61  |   .0023256   .0268441     0.09   0.931    -.0511871    .0558384
         62  |   .0299581   .0119316     2.51   0.014     .0061729    .0537433
         63  |  -.0032467    .018679    -0.17   0.862    -.0404826    .0339892
         64  |  -.0014056   .0177173    -0.08   0.937    -.0367243    .0339132
         65  |   .0258552   .0057304     4.51   0.000     .0144318    .0372786
         66  |  -.0216218   .0149471    -1.45   0.152    -.0514182    .0081747
         69  |  -.0034672   .0056219    -0.62   0.539    -.0146743    .0077399
         70  |   .0894316   .0124747     7.17   0.000     .0645637    .1142995
         71  |   .0400721   .0053753     7.45   0.000     .0293566    .0507876
         72  |   .0288033   .0223854     1.29   0.202    -.0158212    .0734278
         75  |   .0412805   .0157057     2.63   0.010     .0099718    .0725892
         77  |   .0125912   .0082998     1.52   0.134    -.0039541    .0291364
         79  |  -.0252867   .0035521    -7.12   0.000    -.0323677   -.0182056
         82  |   .1053734   .0077842    13.54   0.000     .0898558     .120891
         83  |   .0732261   .0071269    10.27   0.000     .0590188    .0874333
         84  |    .072068   .0032308    22.31   0.000     .0656274    .0785085
         85  |   .0977496   .0154519     6.33   0.000     .0669468    .1285525
         87  |   .0422423   .0332247     1.27   0.208    -.0239899    .1084745
         88  |   .1291581   .0096886    13.33   0.000     .1098441     .148472
         89  |   .0328783   .0057539     5.71   0.000      .021408    .0443486
             |
       _cons |    .441004   .0974735     4.52   0.000     .2466941    .6353139
------------------------------------------------------------------------------

. reg marrfr sr10r lnpopmr i.yob i.regno [aweight=popfr], cluster(regno);
(sum of wgt is   1.1746e+07)

Linear regression                               Number of obs     =      1,971
                                                F(27, 72)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9754
                                                Root MSE          =     .02916

                                 (Std. Err. adjusted for 73 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrfr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10r |   .0927774   .0656864     1.41   0.162     -.038166    .2237208
     lnpopmr |   .0187341   .0157065     1.19   0.237    -.0125762    .0500444
             |
         yob |
       1916  |   .0220125   .0033156     6.64   0.000     .0154029     .028622
       1917  |   .0428055   .0062211     6.88   0.000     .0304039    .0552071
       1918  |   .0762569   .0079007     9.65   0.000     .0605072    .0920066
       1919  |   .0732212   .0029548    24.78   0.000     .0673309    .0791116
       1920  |   .1106531    .005509    20.09   0.000     .0996711    .1216351
       1921  |   .1308687   .0044733    29.26   0.000     .1219513    .1397861
       1922  |   .1631923   .0050829    32.11   0.000     .1530598    .1733248
       1923  |   .1716204   .0054798    31.32   0.000     .1606966    .1825442
       1924  |   .1866011   .0083778    22.27   0.000     .1699003    .2033019
       1925  |    .192504   .0115099    16.73   0.000     .1695594    .2154485
       1926  |   .2053642   .0144748    14.19   0.000     .1765093    .2342191
       1927  |   .2036314   .0188392    10.81   0.000     .1660763    .2411866
       1928  |   .2113712   .0212437     9.95   0.000     .1690227    .2537198
       1929  |   .1950167   .0251217     7.76   0.000     .1449376    .2450959
       1930  |   .2046707   .0254495     8.04   0.000     .1539381    .2554033
       1931  |   .1941126    .028296     6.86   0.000     .1377055    .2505196
       1932  |   .1950861   .0274391     7.11   0.000     .1403873    .2497848
       1933  |   .1684347   .0292509     5.76   0.000     .1101241    .2267453
       1934  |   .1388509   .0296124     4.69   0.000     .0798197     .197882
       1935  |   .1049939   .0317094     3.31   0.001     .0417823    .1682054
       1936  |   .0531121   .0363829     1.46   0.149     -.019416    .1256401
       1937  |  -.0190986   .0404675    -0.47   0.638    -.0997691     .061572
       1938  |  -.1127443   .0448333    -2.51   0.014    -.2021178   -.0233708
       1939  |  -.2202781   .0459692    -4.79   0.000     -.311916   -.1286403
       1940  |  -.3465022   .0451558    -7.67   0.000    -.4365187   -.2564857
       1941  |  -.4499561   .0434474   -10.36   0.000    -.5365669   -.3633454
             |
       regno |
          2  |  -.0567864   .0197572    -2.87   0.005    -.0961717   -.0174011
          3  |  -.0351202   .0150528    -2.33   0.022    -.0651274    -.005113
          5  |  -.1037715   .0158859    -6.53   0.000    -.1354396   -.0721035
          6  |    .079363   .0237117     3.35   0.001     .0320945    .1266314
          8  |  -.0403898   .0132414    -3.05   0.003    -.0667861   -.0139936
          9  |  -.0957397   .0095346   -10.04   0.000    -.1147466   -.0767329
         10  |   -.063827   .0133997    -4.76   0.000    -.0905389   -.0371151
         11  |  -.1121583   .0195583    -5.73   0.000     -.151147   -.0731695
         12  |  -.0763098   .0121976    -6.26   0.000    -.1006252   -.0519944
         13  |  -.0913891   .0089625   -10.20   0.000    -.1092555   -.0735226
         14  |  -.0865079   .0132676    -6.52   0.000    -.1129563   -.0600595
         15  |  -.0830628    .010334    -8.04   0.000    -.1036634   -.0624623
         17  |  -.0838874   .0328916    -2.55   0.013    -.1494557   -.0183192
         18  |  -.0772724   .0139701    -5.53   0.000    -.1051212   -.0494235
         19  |  -.0704422   .0180956    -3.89   0.000    -.1065152   -.0343692
         20  |  -.1009902   .0153894    -6.56   0.000    -.1316684    -.070312
         21  |  -.0896591    .018728    -4.79   0.000    -.1269928   -.0523254
         22  |  -.0457318   .0150189    -3.04   0.003    -.0756715   -.0157921
         23  |  -.1000504   .0118774    -8.42   0.000    -.1237274   -.0763733
         24  |  -.1095347    .013998    -7.83   0.000    -.1374393   -.0816302
         25  |   -.114527   .0168182    -6.81   0.000    -.1480534   -.0810006
         26  |   -.151539   .0186586    -8.12   0.000    -.1887341   -.1143438
         27  |  -.0992364   .0210916    -4.71   0.000    -.1412817   -.0571911
         28  |  -.1106268   .0262805    -4.21   0.000    -.1630161   -.0582376
         29  |    -.10098     .01892    -5.34   0.000    -.1386963   -.0632637
         30  |  -.0967897   .0244288    -3.96   0.000    -.1454876   -.0480917
         31  |  -.0760088   .0206396    -3.68   0.000    -.1171531   -.0348645
         32  |  -.0942482   .0157033    -6.00   0.000    -.1255521   -.0629443
         33  |  -.0643663   .0195683    -3.29   0.002     -.103375   -.0253576
         34  |   .0338367    .009449     3.58   0.001     .0150005    .0526729
         35  |  -.1141021   .0246554    -4.63   0.000    -.1632518   -.0649525
         36  |   .0125112   .0043813     2.86   0.006     .0037773    .0212451
         37  |  -.0252771   .0156617    -1.61   0.111    -.0564982    .0059439
         38  |  -.0748073   .0180708    -4.14   0.000    -.1108307   -.0387839
         39  |  -.0290499   .0154903    -1.88   0.065    -.0599292    .0018295
         40  |  -.0198475   .0186304    -1.07   0.290    -.0569866    .0172916
         41  |  -.0513546   .0132751    -3.87   0.000    -.0778181   -.0248911
         42  |   .0120932    .012557     0.96   0.339    -.0129387    .0371252
         43  |    .044766   .0141908     3.15   0.002     .0164772    .0730548
         44  |   .0267599   .0071009     3.77   0.000     .0126046    .0409152
         46  |  -.0674354   .0094344    -7.15   0.000    -.0862426   -.0486282
         47  |   .0799346   .0057233    13.97   0.000     .0685254    .0913438
         49  |   -.029342   .0315263    -0.93   0.355    -.0921885    .0335045
         50  |  -.0160986   .0226471    -0.71   0.479    -.0612448    .0290475
         51  |  -.0134063   .0239425    -0.56   0.577    -.0611349    .0343222
         52  |  -.0661908    .027876    -2.37   0.020    -.1217605   -.0106211
         53  |  -.1019696   .0160313    -6.36   0.000    -.1339275   -.0700117
         54  |  -.0266144   .0131338    -2.03   0.046    -.0527962   -.0004326
         55  |  -.0316669   .0179292    -1.77   0.082    -.0674081    .0040743
         56  |   -.071908   .0216509    -3.32   0.001    -.1150682   -.0287477
         58  |  -.0418896   .0220349    -1.90   0.061    -.0858153    .0020362
         59  |   .0155397   .0129943     1.20   0.236     -.010364    .0414433
         61  |   -.018128   .0276886    -0.65   0.515    -.0733242    .0370683
         62  |    .020594   .0124138     1.66   0.101    -.0041524    .0453404
         63  |  -.0179015   .0185502    -0.97   0.338    -.0548807    .0190777
         64  |  -.0156132   .0175032    -0.89   0.375    -.0505051    .0192787
         65  |   .0216662   .0055665     3.89   0.000     .0105696    .0327628
         66  |  -.0349154   .0146083    -2.39   0.019    -.0640364   -.0057943
         69  |  -.0101996   .0063286    -1.61   0.111    -.0228156    .0024163
         70  |   .0981086   .0138133     7.10   0.000     .0705724    .1256448
         71  |   .0425481   .0092502     4.60   0.000     .0241083     .060988
         72  |   .0097113   .0237745     0.41   0.684    -.0376823    .0571048
         75  |   .0304423   .0194273     1.57   0.122    -.0082853    .0691699
         77  |   .0044646   .0083508     0.53   0.595    -.0121825    .0211116
         79  |  -.0329596   .0024394   -13.51   0.000    -.0378225   -.0280967
         82  |   .0978462   .0073583    13.30   0.000     .0831776    .1125148
         83  |   .0723422   .0087738     8.25   0.000     .0548519    .0898325
         84  |   .0702663    .002715    25.88   0.000     .0648541    .0756785
         85  |   .1100148   .0157004     7.01   0.000     .0787166     .141313
         87  |   .0767519   .0350388     2.19   0.032     .0069034    .1466004
         88  |   .1364224   .0096305    14.17   0.000     .1172244    .1556204
         89  |   .0273839   .0114637     2.39   0.020     .0045314    .0502364
             |
       _cons |   .3680675   .1268308     2.90   0.005     .1152349    .6209001
------------------------------------------------------------------------------

. reg marrfr sr10r lnpopmr i.yob i.regno i.regno#c.time, cluster(regno);
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      1,971
                                                F(26, 72)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9853
                                                Root MSE          =     .02232

                                 (Std. Err. adjusted for 73 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrfr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10r |   .0957453   .0820034     1.17   0.247    -.0677255    .2592161
     lnpopmr |   .0168909   .0100258     1.68   0.096    -.0030951    .0368769
             |
         yob |
       1916  |   .0160115   .0021426     7.47   0.000     .0117403    .0202828
       1917  |   .0348181   .0041019     8.49   0.000     .0266412    .0429951
       1918  |   .0624774   .0053781    11.62   0.000     .0517564    .0731984
       1919  |   .0600952   .0037963    15.83   0.000     .0525274     .067663
       1920  |   .0920104   .0044856    20.51   0.000     .0830686    .1009522
       1921  |   .1074994   .0042919    25.05   0.000     .0989437    .1160551
       1922  |   .1354148   .0048209    28.09   0.000     .1258045    .1450251
       1923  |   .1412308   .0044024    32.08   0.000     .1324547     .150007
       1924  |   .1524763   .0051125    29.82   0.000     .1422847    .1626679
       1925  |   .1567802   .0055849    28.07   0.000     .1456469    .1679136
       1926  |   .1640833   .0062607    26.21   0.000     .1516028    .1765638
       1927  |   .1603321   .0084843    18.90   0.000      .143419    .1772452
       1928  |   .1655222   .0097557    16.97   0.000     .1460745    .1849699
       1929  |    .146922   .0115804    12.69   0.000     .1238368    .1700071
       1930  |   .1526804   .0123198    12.39   0.000     .1281213    .1772394
       1931  |   .1388639   .0132143    10.51   0.000     .1125216    .1652061
       1932  |   .1354487   .0141675     9.56   0.000     .1072064    .1636911
       1933  |   .1072805   .0145325     7.38   0.000     .0783106    .1362504
       1934  |   .0748898   .0162763     4.60   0.000     .0424435    .1073361
       1935  |   .0367892    .017552     2.10   0.040        .0018    .0717785
       1936  |  -.0184938   .0203947    -0.91   0.368    -.0591498    .0221623
       1937  |  -.0933917   .0215636    -4.33   0.000    -.1363779   -.0504054
       1938  |  -.1875787   .0236801    -7.92   0.000    -.2347841   -.1403734
       1939  |  -.2978385   .0246121   -12.10   0.000    -.3469017   -.2487752
       1940  |  -.4264768   .0241168   -17.68   0.000    -.4745527   -.3784008
       1941  |  -.5336216   .0241718   -22.08   0.000    -.5818073   -.4854359
             |
       regno |
          2  |  -.0393623   .0048023    -8.20   0.000    -.0489355   -.0297891
          3  |  -.0108839   .0138394    -0.79   0.434    -.0384722    .0167044
          5  |  -.0876376   .0211546    -4.14   0.000    -.1298084   -.0454667
          6  |   .1351732   .0193466     6.99   0.000     .0966065    .1737399
          8  |  -.0060278     .01182    -0.51   0.612    -.0295905     .017535
          9  |  -.0540045   .0124846    -4.33   0.000     -.078892    -.029117
         10  |  -.0458469    .015121    -3.03   0.003      -.07599   -.0157038
         11  |  -.1464268   .0188458    -7.77   0.000    -.1839952   -.1088584
         12  |  -.0726594   .0129329    -5.62   0.000    -.0984406   -.0468783
         13  |  -.0766517   .0132576    -5.78   0.000    -.1030802   -.0502232
         14  |  -.1227778   .0158128    -7.76   0.000       -.1543   -.0912556
         15  |  -.0802841    .016454    -4.88   0.000    -.1130845   -.0474836
         17  |  -.0386115   .0250878    -1.54   0.128    -.0886232    .0114001
         18  |  -.1125276   .0153537    -7.33   0.000    -.1431346   -.0819205
         19  |  -.1106355   .0198816    -5.56   0.000    -.1502689   -.0710022
         20  |  -.1395117   .0209185    -6.67   0.000     -.181212   -.0978115
         21  |  -.0797113   .0208473    -3.82   0.000    -.1212697    -.038153
         22  |   -.072705   .0146892    -4.95   0.000    -.1019873   -.0434226
         23  |  -.0693479   .0146255    -4.74   0.000    -.0985033   -.0401926
         24  |  -.1281797   .0140599    -9.12   0.000    -.1562077   -.1001517
         25  |   -.163615   .0170247    -9.61   0.000    -.1975531   -.1296769
         26  |  -.1289267   .0170395    -7.57   0.000    -.1628943   -.0949591
         27  |  -.1213366   .0229323    -5.29   0.000    -.1670513    -.075622
         28  |  -.1438435   .0239811    -6.00   0.000    -.1916489   -.0960381
         29  |  -.1559554   .0191946    -8.12   0.000    -.1942191   -.1176916
         30  |  -.1592701    .022712    -7.01   0.000    -.2045456   -.1139946
         31  |  -.1074785   .0195928    -5.49   0.000     -.146536    -.068421
         32  |  -.1376352   .0171102    -8.04   0.000    -.1717437   -.1035267
         33  |  -.1168926    .018783    -6.22   0.000    -.1543358   -.0794494
         34  |  -.0028982   .0178888    -0.16   0.872    -.0385588    .0327624
         35  |  -.1054157   .0223293    -4.72   0.000    -.1499283   -.0609031
         36  |   .0179504   .0070027     2.56   0.012     .0039908      .03191
         37  |  -.0735474   .0142304    -5.17   0.000    -.1019151   -.0451796
         38  |  -.1154771   .0176791    -6.53   0.000    -.1507197   -.0802346
         39  |  -.0510449   .0133879    -3.81   0.000    -.0777332   -.0243566
         40  |  -.0645264   .0165061    -3.91   0.000    -.0974308    -.031622
         41  |  -.0983327   .0129535    -7.59   0.000     -.124155   -.0725104
         42  |  -.0554111   .0060169    -9.21   0.000    -.0674055   -.0434167
         43  |   .0002763   .0103725     0.03   0.979    -.0204009    .0209536
         44  |   .0176279   .0195247     0.90   0.370    -.0212937    .0565496
         46  |   .0514021   .0137379     3.74   0.000     .0240162    .0787881
         47  |  -.0111348   .0215247    -0.52   0.607    -.0540434    .0317739
         49  |  -.0778269   .0242171    -3.21   0.002    -.1261027   -.0295511
         50  |  -.0815757   .0173626    -4.70   0.000    -.1161873    -.046964
         51  |  -.0735713   .0184163    -3.99   0.000    -.1102835   -.0368592
         52  |  -.1105132   .0212539    -5.20   0.000     -.152882   -.0681444
         53  |  -.1442624   .0169128    -8.53   0.000    -.1779775   -.1105472
         54  |  -.1317109   .0127348   -10.34   0.000    -.1570972   -.1063246
         55  |  -.0848805   .0142247    -5.97   0.000     -.113237    -.056524
         56  |  -.1040663   .0182395    -5.71   0.000    -.1404261   -.0677065
         58  |  -.0731577   .0157829    -4.64   0.000    -.1046203    -.041695
         59  |  -.0441893   .0125569    -3.52   0.001    -.0692209   -.0191577
         61  |  -.1152696    .021451    -5.37   0.000    -.1580314   -.0725078
         62  |  -.0117053   .0119182    -0.98   0.329    -.0354638    .0120533
         63  |  -.0861254   .0150742    -5.71   0.000    -.1161752   -.0560755
         64  |  -.0712554   .0135125    -5.27   0.000     -.098192   -.0443188
         65  |  -.0259521   .0071479    -3.63   0.001    -.0402011   -.0117031
         66  |  -.0834258   .0121934    -6.84   0.000    -.1077329   -.0591187
         69  |  -.0198479   .0116509    -1.70   0.093    -.0430735    .0033776
         70  |    .127661   .0462994     2.76   0.007     .0353647    .2199572
         71  |   .0076372   .0084637     0.90   0.370    -.0092348    .0245093
         72  |  -.0207119    .018698    -1.11   0.272    -.0579856    .0165618
         75  |   .0358211   .0205562     1.74   0.086     -.005157    .0767992
         77  |  -.0161914   .0092334    -1.75   0.084    -.0345978     .002215
         79  |   .0576768   .0315095     1.83   0.071    -.0051363    .1204898
         82  |   .1007018   .0229037     4.40   0.000      .055044    .1463596
         83  |   .1169018   .0332683     3.51   0.001     .0505825     .183221
         84  |   .0931997   .0240096     3.88   0.000     .0453375     .141062
         85  |    .141221   .0398372     3.54   0.001     .0618071    .2206349
         87  |   .0860806   .0848865     1.01   0.314    -.0831374    .2552987
         88  |   .1347023   .0410175     3.28   0.002     .0529354    .2164692
         89  |   .0445036   .0065505     6.79   0.000     .0314453    .0575618
             |
regno#c.time |
          1  |   .0010168   .0011242     0.90   0.369    -.0012243    .0032579
          2  |  -.0001364   .0024131    -0.06   0.955    -.0049469    .0046741
          3  |  -.0008695   .0020665    -0.42   0.675     -.004989    .0032501
          5  |  -.0003406   .0014904    -0.23   0.820    -.0033116    .0026304
          6  |  -.0032026   .0013949    -2.30   0.025    -.0059834   -.0004219
          8  |  -.0014733   .0003958    -3.72   0.000    -.0022622   -.0006844
          9  |  -.0020764   .0010066    -2.06   0.043    -.0040831   -.0000698
         10  |  -.0004941   .0008971    -0.55   0.583    -.0022825    .0012943
         11  |   .0035434     .00052     6.81   0.000     .0025068    .0045799
         12  |   .0007927   .0007793     1.02   0.312    -.0007608    .0023462
         13  |  -.0001468   .0011536    -0.13   0.899    -.0024463    .0021528
         14  |   .0036083   .0008916     4.05   0.000     .0018309    .0053858
         15  |   .0007055   .0016213     0.44   0.665    -.0025265    .0039374
         17  |  -.0018685   .0002087    -8.95   0.000    -.0022846   -.0014524
         18  |   .0035296    .000859     4.11   0.000     .0018172    .0052421
         19  |   .0040743   .0012221     3.33   0.001     .0016382    .0065104
         20  |   .0037611   .0012187     3.09   0.003     .0013316    .0061906
         21  |   .0001406   .0012308     0.11   0.909    -.0023129    .0025941
         22  |   .0030155   .0008689     3.47   0.001     .0012834    .0047477
         23  |  -.0013358   .0009639    -1.39   0.170    -.0032573    .0005856
         24  |   .0023535   .0006983     3.37   0.001     .0009616    .0037455
         25  |   .0046421   .0006099     7.61   0.000     .0034263    .0058579
         26  |  -.0004186   .0003835    -1.09   0.279    -.0011831    .0003458
         27  |    .002736   .0014749     1.86   0.068    -.0002042    .0056763
         28  |   .0036191   .0008438     4.29   0.000      .001937    .0053011
         29  |    .005127   .0006402     8.01   0.000     .0038508    .0064033
         30  |   .0057227   .0008106     7.06   0.000     .0041068    .0073387
         31  |   .0034064   .0008105     4.20   0.000     .0017908    .0050221
         32  |     .00422   .0007851     5.38   0.000      .002655     .005785
         33  |   .0049433   .0009073     5.45   0.000     .0031346     .006752
         34  |   .0035108   .0002246    15.63   0.000     .0030631    .0039584
         35  |   .0006835    .000779     0.88   0.383    -.0008693    .0022364
         36  |   .0007168   .0003204     2.24   0.028      .000078    .0013555
         37  |   .0046447   .0007753     5.99   0.000     .0030991    .0061902
         38  |   .0040795   .0007292     5.59   0.000      .002626    .0055331
         39  |   .0026912   .0006728     4.00   0.000     .0013499    .0040324
         40  |   .0043615   .0009233     4.72   0.000      .002521     .006202
         41  |   .0044281   .0007016     6.31   0.000     .0030295    .0058267
         42  |   .0055806    .000213    26.20   0.000      .005156    .0060053
         43  |   .0042589   .0003004    14.18   0.000       .00366    .0048578
         44  |   .0017886   .0004361     4.10   0.000     .0009193     .002658
         46  |  -.0063914   .0001968   -32.48   0.000    -.0067837   -.0059992
         47  |   .0071809   .0007545     9.52   0.000     .0056769    .0086849
         49  |    .004773    .000531     8.99   0.000     .0037145    .0058314
         50  |   .0057938   .0003778    15.33   0.000     .0050406    .0065469
         51  |   .0054953   .0006065     9.06   0.000     .0042863    .0067042
         52  |   .0044138   .0005463     8.08   0.000     .0033247    .0055029
         53  |   .0042235   .0007459     5.66   0.000     .0027366    .0057104
         54  |   .0086484   .0006995    12.36   0.000      .007254    .0100427
         55  |   .0048708   .0005996     8.12   0.000     .0036755    .0060661
         56  |   .0036068   .0009914     3.64   0.001     .0016305    .0055832
         58  |   .0034606   .0014761     2.34   0.022     .0005179    .0064032
         59  |   .0054053   .0001381    39.13   0.000     .0051299    .0056807
         61  |   .0083206   .0006239    13.34   0.000      .007077    .0095643
         62  |   .0035309   .0006008     5.88   0.000     .0023332    .0047285
         63  |   .0061017   .0005625    10.85   0.000     .0049805     .007223
         64  |   .0051473   .0003896    13.21   0.000     .0043707    .0059239
         65  |   .0045828   .0006564     6.98   0.000     .0032741    .0058914
         66  |   .0046756   .0004647    10.06   0.000     .0037492    .0056021
         69  |   .0018293   .0001764    10.37   0.000     .0014776     .002181
         70  |  -.0010034   .0016396    -0.61   0.542    -.0042718    .0022649
         71  |   .0036234   .0002203    16.45   0.000     .0031843    .0040624
         72  |   .0035041   .0003468    10.10   0.000     .0028127    .0041955
         75  |   .0009057   .0003482     2.60   0.011     .0002117    .0015998
         77  |    .002605   .0000611    42.66   0.000     .0024833    .0027268
         79  |  -.0050919   .0008343    -6.10   0.000    -.0067551   -.0034287
         82  |   .0009075   .0007328     1.24   0.220    -.0005533    .0023684
         83  |  -.0020752   .0005504    -3.77   0.000    -.0031724   -.0009781
         84  |  -.0004792   .0003213    -1.49   0.140    -.0011197    .0001612
         85  |  -.0011611   .0008441    -1.38   0.173    -.0028438    .0005217
         87  |   .0003761   .0014672     0.26   0.798    -.0025488    .0033009
         88  |   .0013789   .0008632     1.60   0.115    -.0003418    .0030997
         89  |          0  (omitted)
             |
       _cons |   .4136592   .0678678     6.10   0.000     .2783672    .5489513
------------------------------------------------------------------------------

. reg marrfr sr10r lnpopmr i.yob i.regno i.regno#c.time [aweight=popfr], cluster(regno);
(sum of wgt is   1.1746e+07)
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      1,971
                                                F(27, 72)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9889
                                                Root MSE          =     .01996

                                 (Std. Err. adjusted for 73 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrfr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10r |   .1183664   .1084067     1.09   0.279    -.0977385    .3344712
     lnpopmr |   .0120499   .0091827     1.31   0.194    -.0062555    .0303553
             |
         yob |
       1916  |   .0169534   .0023861     7.11   0.000     .0121968    .0217099
       1917  |   .0338165   .0042398     7.98   0.000     .0253645    .0422685
       1918  |   .0639377   .0053877    11.87   0.000     .0531976    .0746778
       1919  |   .0621498   .0036457    17.05   0.000     .0548823    .0694174
       1920  |   .0933869   .0052844    17.67   0.000     .0828526    .1039211
       1921  |   .1111099   .0050221    22.12   0.000     .1010986    .1211212
       1922  |   .1401587   .0052889    26.50   0.000     .1296155    .1507019
       1923  |   .1469072   .0046121    31.85   0.000     .1377132    .1561012
       1924  |   .1608303   .0046238    34.78   0.000     .1516129    .1700476
       1925  |   .1646722   .0060576    27.18   0.000     .1525967    .1767477
       1926  |   .1742944   .0081533    21.38   0.000      .158041    .1905478
       1927  |   .1705873   .0110184    15.48   0.000     .1486224    .1925522
       1928  |   .1752075    .013511    12.97   0.000     .1482739    .2021412
       1929  |    .157014   .0152949    10.27   0.000     .1265243    .1875038
       1930  |   .1621902   .0178315     9.10   0.000     .1266438    .1977366
       1931  |   .1493313   .0192154     7.77   0.000     .1110262    .1876364
       1932  |   .1460818   .0203662     7.17   0.000     .1054826    .1866811
       1933  |   .1166659   .0217519     5.36   0.000     .0733043    .1600275
       1934  |   .0829025   .0236494     3.51   0.001     .0357583    .1300467
       1935  |   .0453896   .0260006     1.75   0.085    -.0064416    .0972209
       1936  |  -.0096226   .0295519    -0.33   0.746    -.0685333    .0492881
       1937  |  -.0846696   .0322442    -2.63   0.011    -.1489472   -.0203919
       1938  |  -.1801321   .0355114    -5.07   0.000    -.2509227   -.1093415
       1939  |  -.2910644   .0361612    -8.05   0.000    -.3631505   -.2189783
       1940  |  -.4206513   .0361816   -11.63   0.000    -.4927781   -.3485245
       1941  |  -.5281817   .0356306   -14.82   0.000    -.5992101   -.4571533
             |
       regno |
          2  |   -.043678   .0049702    -8.79   0.000    -.0535858   -.0337702
          3  |  -.0061179   .0141554    -0.43   0.667    -.0343361    .0221003
          5  |  -.0820689   .0226173    -3.63   0.001    -.1271556   -.0369821
          6  |   .1266713   .0158343     8.00   0.000     .0951062    .1582365
          8  |  -.0017776   .0112398    -0.16   0.875    -.0241837    .0206285
          9  |  -.0547888   .0131319    -4.17   0.000    -.0809668   -.0286108
         10  |  -.0423582   .0142974    -2.96   0.004    -.0708596   -.0138568
         11  |  -.1424898   .0188482    -7.56   0.000    -.1800631   -.1049166
         12  |  -.0699435   .0122596    -5.71   0.000    -.0943825   -.0455045
         13  |  -.0718951   .0147858    -4.86   0.000    -.1013701   -.0424201
         14  |  -.1187324   .0170599    -6.96   0.000    -.1527407    -.084724
         15  |  -.0768693   .0178632    -4.30   0.000    -.1124788   -.0412597
         17  |   -.032476   .0242082    -1.34   0.184    -.0807342    .0157821
         18  |  -.1093986   .0147609    -7.41   0.000    -.1388239   -.0799733
         19  |  -.1079205   .0188004    -5.74   0.000    -.1453985   -.0704426
         20  |  -.1336387   .0219633    -6.08   0.000    -.1774218   -.0898555
         21  |  -.0764859   .0196631    -3.89   0.000    -.1156836   -.0372881
         22  |  -.0712379   .0132224    -5.39   0.000    -.0975963   -.0448795
         23  |  -.0657372   .0151824    -4.33   0.000    -.0960027   -.0354716
         24  |  -.1295957   .0159269    -8.14   0.000    -.1613454    -.097846
         25  |  -.1627671   .0167626    -9.71   0.000    -.1961827   -.1293515
         26  |  -.1294121    .017137    -7.55   0.000    -.1635741   -.0952501
         27  |  -.1166197   .0228967    -5.09   0.000    -.1622634   -.0709761
         28  |    -.13971   .0224009    -6.24   0.000    -.1843655   -.0950546
         29  |  -.1541569   .0181965    -8.47   0.000    -.1904309   -.1178829
         30  |  -.1545361   .0209576    -7.37   0.000    -.1963142   -.1127579
         31  |  -.1030801   .0178843    -5.76   0.000    -.1387319   -.0674283
         32  |  -.1367484   .0167823    -8.15   0.000    -.1702032   -.1032935
         33  |   -.114012   .0168556    -6.76   0.000    -.1476131    -.080411
         34  |  -.0217901   .0219688    -0.99   0.325    -.0655842    .0220039
         35  |  -.1008468   .0214394    -4.70   0.000    -.1435855   -.0581081
         36  |   .0119569   .0107669     1.11   0.270    -.0095065    .0334203
         37  |  -.0764962   .0130794    -5.85   0.000    -.1025696   -.0504229
         38  |  -.1145852   .0160196    -7.15   0.000    -.1465197   -.0826506
         39  |  -.0490018   .0124069    -3.95   0.000    -.0737344   -.0242692
         40  |  -.0624664   .0147335    -4.24   0.000     -.091837   -.0330957
         41  |  -.0963058   .0115938    -8.31   0.000    -.1194176   -.0731941
         42  |  -.0746253   .0081997    -9.10   0.000    -.0909711   -.0582795
         43  |  -.0233358    .016213    -1.44   0.154    -.0556559    .0089843
         44  |   .0017396   .0286099     0.06   0.952    -.0552931    .0587724
         46  |   .0406892   .0186082     2.19   0.032     .0035945     .077784
         47  |  -.0482122   .0312834    -1.54   0.128    -.1105746    .0141501
         49  |   -.074636   .0222652    -3.35   0.001    -.1190209   -.0302511
         50  |  -.0832551   .0167606    -4.97   0.000    -.1166668   -.0498435
         51  |  -.0733275   .0172227    -4.26   0.000    -.1076604   -.0389946
         52  |  -.1115752   .0192567    -5.79   0.000    -.1499626   -.0731877
         53  |  -.1483452   .0181909    -8.15   0.000    -.1846081   -.1120824
         54  |  -.1385784   .0120629   -11.49   0.000    -.1626254   -.1145313
         55  |  -.0843938   .0128819    -6.55   0.000    -.1100734   -.0587142
         56  |  -.1070393   .0166115    -6.44   0.000    -.1401538   -.0739248
         58  |  -.0764157    .014444    -5.29   0.000    -.1052093    -.047622
         59  |  -.0566552   .0153102    -3.70   0.000    -.0871756   -.0261348
         61  |  -.1210532   .0196859    -6.15   0.000    -.1602963   -.0818101
         62  |  -.0209921   .0133316    -1.57   0.120    -.0475682    .0055841
         63  |  -.0920326   .0137328    -6.70   0.000    -.1194083   -.0646568
         64  |   -.078398   .0125036    -6.27   0.000    -.1033234   -.0534725
         65  |   -.033967   .0074357    -4.57   0.000    -.0487898   -.0191442
         66  |  -.0899761   .0110974    -8.11   0.000    -.1120983   -.0678539
         69  |  -.0325552   .0161453    -2.02   0.047    -.0647402   -.0003702
         70  |    .090611    .060629     1.49   0.139    -.0302506    .2114727
         71  |  -.0131763   .0115059    -1.15   0.256     -.036113    .0097604
         72  |  -.0277496   .0203383    -1.36   0.177    -.0682933    .0127941
         75  |   .0217479   .0279715     0.78   0.439    -.0340122     .077508
         77  |  -.0289506   .0118855    -2.44   0.017    -.0526439   -.0052573
         79  |   .0407161   .0427598     0.95   0.344     -.044524    .1259562
         82  |   .0893324   .0302005     2.96   0.004     .0291287    .1495361
         83  |   .0977196   .0443326     2.20   0.031     .0093442    .1860949
         84  |   .0766178   .0317587     2.41   0.018      .013308    .1399277
         85  |   .1141163   .0490956     2.32   0.023      .016246    .2119866
         87  |   .0503773   .1052157     0.48   0.634    -.1593663     .260121
         88  |   .1035511   .0534129     1.94   0.056    -.0029255    .2100277
         89  |   .0277287   .0068619     4.04   0.000     .0140498    .0414076
             |
regno#c.time |
          1  |  -.0000369   .0014571    -0.03   0.980    -.0029415    .0028677
          2  |  -.0012525   .0032011    -0.39   0.697    -.0076337    .0051287
          3  |  -.0020737   .0027039    -0.77   0.446    -.0074637    .0033164
          5  |   -.001206   .0018933    -0.64   0.526    -.0049803    .0025682
          6  |  -.0041395    .002164    -1.91   0.060    -.0084533    .0001743
          8  |  -.0023717   .0003822    -6.20   0.000    -.0031337   -.0016097
          9  |  -.0028212   .0012249    -2.30   0.024    -.0052631   -.0003793
         10  |  -.0013018   .0010605    -1.23   0.224    -.0034159    .0008124
         11  |   .0028932   .0006046     4.79   0.000      .001688    .0040985
         12  |  -.0000817    .000907    -0.09   0.928    -.0018896    .0017263
         13  |  -.0011962   .0014391    -0.83   0.409     -.004065    .0016725
         14  |   .0027183   .0010891     2.50   0.015     .0005473    .0048894
         15  |  -.0002861   .0020661    -0.14   0.890    -.0044049    .0038327
         17  |  -.0025619   .0001482   -17.29   0.000    -.0028572   -.0022665
         18  |   .0027487   .0010188     2.70   0.009     .0007177    .0047797
         19  |   .0032527   .0014862     2.19   0.032     .0002899    .0062155
         20  |   .0028673   .0014974     1.91   0.059    -.0001177    .0058523
         21  |  -.0005898   .0014842    -0.40   0.692    -.0035485    .0023689
         22  |   .0022522   .0010103     2.23   0.029     .0002381    .0042662
         23  |  -.0022006   .0011877    -1.85   0.068    -.0045683     .000167
         24  |   .0017958   .0008304     2.16   0.034     .0001403    .0034512
         25  |   .0040638   .0006971     5.83   0.000     .0026742    .0054535
         26  |  -.0008931   .0004119    -2.17   0.033    -.0017142   -.0000721
         27  |    .001864   .0018716     1.00   0.323     -.001867    .0055951
         28  |   .0029821   .0010214     2.92   0.005      .000946    .0050183
         29  |   .0045528   .0007016     6.49   0.000     .0031541    .0059514
         30  |   .0050396   .0009312     5.41   0.000     .0031832    .0068959
         31  |   .0026165   .0009345     2.80   0.007     .0007537    .0044793
         32  |   .0036001   .0009192     3.92   0.000     .0017677    .0054325
         33  |   .0042002   .0010524     3.99   0.000     .0021023     .006298
         34  |   .0033823   .0002224    15.21   0.000      .002939    .0038256
         35  |   .0000101   .0009592     0.01   0.992    -.0019021    .0019223
         36  |   .0001005   .0002636     0.38   0.704    -.0004251     .000626
         37  |   .0041367   .0008603     4.81   0.000     .0024216    .0058517
         38  |   .0034672   .0008222     4.22   0.000     .0018282    .0051062
         39  |   .0018432   .0007511     2.45   0.017     .0003458    .0033406
         40  |   .0035641   .0010747     3.32   0.001     .0014217    .0057066
         41  |   .0036279   .0007986     4.54   0.000     .0020359    .0052199
         42  |   .0058311   .0001091    53.43   0.000     .0056135    .0060487
         43  |   .0050329   .0006211     8.10   0.000     .0037947     .006271
         44  |   .0017699   .0008227     2.15   0.035     .0001299      .00341
         46  |  -.0067828   .0003864   -17.55   0.000     -.007553   -.0060125
         47  |   .0085873   .0011915     7.21   0.000      .006212    .0109625
         49  |   .0041973   .0005387     7.79   0.000     .0031235    .0052711
         50  |   .0054126   .0003372    16.05   0.000     .0047403    .0060848
         51  |   .0049729    .000682     7.29   0.000     .0036132    .0063325
         52  |   .0041089   .0006235     6.59   0.000     .0028661    .0053517
         53  |   .0038471   .0009244     4.16   0.000     .0020044    .0056899
         54  |   .0083907   .0008414     9.97   0.000     .0067134     .010068
         55  |   .0042728   .0007049     6.06   0.000     .0028677     .005678
         56  |   .0031158    .001228     2.54   0.013     .0006678    .0055637
         58  |   .0028026   .0018868     1.49   0.142    -.0009588    .0065639
         59  |   .0054279   .0000955    56.81   0.000     .0052375    .0056184
         61  |    .008188   .0007324    11.18   0.000     .0067279    .0096481
         62  |   .0031949   .0006886     4.64   0.000     .0018221    .0045677
         63  |   .0058432   .0006668     8.76   0.000     .0045139    .0071724
         64  |   .0049745   .0004453    11.17   0.000     .0040867    .0058622
         65  |   .0040812     .00076     5.37   0.000     .0025661    .0055963
         66  |   .0043803    .000525     8.34   0.000     .0033338    .0054269
         69  |   .0017076    .000315     5.42   0.000     .0010796    .0023356
         70  |   .0001089   .0023224     0.05   0.963    -.0045208    .0047385
         71  |   .0036913   .0001575    23.44   0.000     .0033773    .0040052
         72  |   .0032753   .0003253    10.07   0.000     .0026268    .0039238
         75  |   .0008155   .0003565     2.29   0.025     .0001049    .0015261
         77  |   .0025828   .0000156   166.00   0.000     .0025518    .0026138
         79  |  -.0052348   .0012283    -4.26   0.000    -.0076834   -.0027862
         82  |   .0007592    .000991     0.77   0.446    -.0012163    .0027347
         83  |  -.0021013   .0007755    -2.71   0.008    -.0036472   -.0005554
         84  |  -.0005938   .0004449    -1.33   0.186    -.0014807    .0002931
         85  |  -.0011313   .0011631    -0.97   0.334    -.0034499    .0011874
         87  |   .0000354   .0019606     0.02   0.986    -.0038731    .0039438
         88  |   .0017149   .0012096     1.42   0.161    -.0006964    .0041261
         89  |          0  (omitted)
             |
       _cons |   .4400514   .0796647     5.52   0.000     .2812427    .5988601
------------------------------------------------------------------------------

. *  Men age 18-44;
. reg marrm sr10a lnpopf urbshm i.yob i.regno, cluster(regno);

Linear regression                               Number of obs     =      2,025
                                                F(28, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9948
                                                Root MSE          =     .02398

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
       marrm |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10a |  -.0263464   .0343065    -0.77   0.445    -.0947036    .0420109
      lnpopf |  -.0022798   .0143973    -0.16   0.875    -.0309671    .0264074
      urbshm |   .0450745   .0742532     0.61   0.546    -.1028783    .1930273
             |
         yob |
       1916  |  -.0014582   .0032323    -0.45   0.653    -.0078987    .0049823
       1917  |  -.0041137    .005297    -0.78   0.440    -.0146683    .0064408
       1918  |  -.0035968   .0083244    -0.43   0.667    -.0201836      .01299
       1919  |  -.0024071   .0019998    -1.20   0.233    -.0063918    .0015776
       1920  |  -.0050694   .0062542    -0.81   0.420    -.0175311    .0073924
       1921  |  -.0078149   .0041677    -1.88   0.065    -.0161192    .0004894
       1922  |  -.0097094   .0054262    -1.79   0.078    -.0205213    .0011025
       1923  |  -.0132114   .0027596    -4.79   0.000      -.01871   -.0077128
       1924  |  -.0178837     .00203    -8.81   0.000    -.0219286   -.0138387
       1925  |  -.0218447   .0025559    -8.55   0.000    -.0269375    -.016752
       1926  |  -.0286312   .0031126    -9.20   0.000    -.0348332   -.0224292
       1927  |  -.0356106   .0045347    -7.85   0.000    -.0446462    -.026575
       1928  |  -.0440949   .0049443    -8.92   0.000    -.0539467   -.0342432
       1929  |  -.0586226   .0064499    -9.09   0.000    -.0714744   -.0457708
       1930  |  -.0796025   .0075767   -10.51   0.000    -.0946993   -.0645056
       1931  |  -.1096851    .008543   -12.84   0.000    -.1267074   -.0926628
       1932  |  -.1500373   .0108114   -13.88   0.000    -.1715794   -.1284951
       1933  |  -.1949571    .011405   -17.09   0.000    -.2176821   -.1722321
       1934  |  -.2710532   .0137503   -19.71   0.000    -.2984511   -.2436552
       1935  |  -.3849368   .0142183   -27.07   0.000    -.4132673   -.3566062
       1936  |  -.5308727    .013901   -38.19   0.000     -.558571   -.5031744
       1937  |  -.6943406   .0140107   -49.56   0.000    -.7222574   -.6664237
       1938  |  -.7976784   .0137248   -58.12   0.000    -.8250257   -.7703312
       1939  |  -.8524411   .0135584   -62.87   0.000    -.8794568   -.8254255
       1940  |  -.8984998   .0132853   -67.63   0.000    -.9249713   -.8720283
       1941  |  -.9273237   .0132162   -70.17   0.000    -.9536575   -.9009899
             |
       regno |
          2  |  -.0513532   .0120249    -4.27   0.000    -.0753134    -.027393
          3  |  -.0236019   .0076707    -3.08   0.003    -.0388861   -.0083177
          5  |   .0033432   .0158028     0.21   0.833    -.0281446    .0348311
          6  |  -.0302352   .0210041    -1.44   0.154    -.0720869    .0116164
          7  |  -.0563308   .0451533    -1.25   0.216    -.1463008    .0336391
          8  |    .003892   .0099211     0.39   0.696    -.0158762    .0236602
          9  |   .0091405   .0142806     0.64   0.524    -.0193142    .0375951
         10  |   .0171504   .0222456     0.77   0.443     -.027175    .0614757
         11  |   .0251905   .0157608     1.60   0.114    -.0062135    .0565946
         12  |   .0043563   .0107983     0.40   0.688    -.0171599    .0258724
         13  |   .0012187   .0137797     0.09   0.930     -.026238    .0286754
         14  |   .0137987   .0126777     1.09   0.280    -.0114621    .0390596
         15  |   .0074981   .0141568     0.53   0.598      -.02071    .0357062
         16  |  -.0539888   .0492214    -1.10   0.276    -.1520646     .044087
         17  |  -.0026739   .0323993    -0.08   0.934    -.0672308    .0618831
         18  |   .0175498   .0235943     0.74   0.459    -.0294629    .0645625
         19  |   .0122348   .0184061     0.66   0.508    -.0244401    .0489097
         20  |   .0095173   .0169134     0.56   0.575    -.0241833     .043218
         21  |   .0050205   .0139919     0.36   0.721    -.0228589       .0329
         22  |   .0107119   .0155146     0.69   0.492    -.0202017    .0416254
         23  |  -.0122065   .0111338    -1.10   0.276     -.034391     .009978
         24  |   .0290629   .0220972     1.32   0.192    -.0149666    .0730925
         25  |   .0376376   .0275734     1.37   0.176    -.0173035    .0925788
         26  |   .0134836   .0220633     0.61   0.543    -.0304785    .0574456
         27  |   .0169825    .016158     1.05   0.297     -.015213    .0491779
         28  |   .0179512   .0229613     0.78   0.437    -.0278002    .0637026
         29  |   .0295843   .0254558     1.16   0.249    -.0211375     .080306
         30  |   .0159459   .0188208     0.85   0.400    -.0215553    .0534471
         31  |   .0234252   .0257642     0.91   0.366     -.027911    .0747614
         32  |   .0177059   .0173813     1.02   0.312    -.0169272    .0523389
         33  |   .0199969   .0218485     0.92   0.363    -.0235372    .0635309
         34  |    .051872   .0452979     1.15   0.256     -.038386    .1421299
         35  |   .0092893   .0188458     0.49   0.624    -.0282618    .0468405
         36  |  -.0057612   .0063465    -0.91   0.367    -.0184069    .0068845
         37  |   .0119636   .0129497     0.92   0.359    -.0138392    .0377664
         38  |   .0275012   .0166411     1.65   0.103    -.0056569    .0606593
         39  |    .013725    .018345     0.75   0.457    -.0228283    .0502782
         40  |   .0132794   .0144124     0.92   0.360    -.0154379    .0419968
         41  |   .0369462    .014734     2.51   0.014      .007588    .0663044
         42  |    .017025   .0284068     0.60   0.551    -.0395767    .0736268
         43  |   .0326415   .0182877     1.78   0.078    -.0037975    .0690806
         44  |   .0178872   .0182254     0.98   0.330    -.0184278    .0542022
         46  |   -.064686    .009219    -7.02   0.000    -.0830551   -.0463168
         47  |   .0256344   .0127318     2.01   0.048     .0002657    .0510032
         49  |   .0323858   .0224793     1.44   0.154    -.0124051    .0771767
         50  |   .0389713   .0199978     1.95   0.055    -.0008751    .0788177
         51  |    .018132   .0217208     0.83   0.407    -.0251477    .0614116
         52  |   .0379991   .0204505     1.86   0.067    -.0027495    .0787476
         53  |   .0414232   .0105693     3.92   0.000     .0203635    .0624829
         54  |   .0525103   .0166761     3.15   0.002     .0192823    .0857382
         55  |   .0353541   .0125089     2.83   0.006     .0104296    .0602786
         56  |  -.0013179   .0206652    -0.06   0.949    -.0424943    .0398585
         58  |  -.0007224    .030998    -0.02   0.981    -.0624873    .0610425
         59  |   .0171134   .0282828     0.61   0.547    -.0392415    .0734682
         61  |   .0585618   .0205164     2.85   0.006     .0176821    .0994415
         62  |   .0156709   .0267985     0.58   0.560    -.0377263    .0690681
         63  |   .0307119   .0169746     1.81   0.074    -.0031107    .0645345
         64  |   .0368471    .012271     3.00   0.004     .0123966    .0612975
         65  |   .0132994   .0069372     1.92   0.059    -.0005233    .0271221
         66  |   .0392433   .0185032     2.12   0.037     .0023749    .0761118
         69  |   .0215851   .0135519     1.59   0.115    -.0054177    .0485879
         70  |   .0274614   .0378942     0.72   0.471    -.0480444    .1029671
         71  |   .0364259   .0103823     3.51   0.001     .0157388    .0571131
         72  |   .0054885   .0165269     0.33   0.741    -.0274422    .0384191
         75  |  -.0142827   .0146037    -0.98   0.331    -.0433813    .0148158
         77  |   .0272456   .0050089     5.44   0.000     .0172651     .037226
         79  |  -.1029225   .0145466    -7.08   0.000    -.1319073   -.0739377
         82  |  -.0116009   .0127333    -0.91   0.365    -.0369727    .0137708
         83  |  -.0069191   .0125494    -0.55   0.583    -.0319243    .0180862
         84  |   .0122573   .0039712     3.09   0.003     .0043445    .0201701
         85  |  -.0408136   .0177533    -2.30   0.024    -.0761879   -.0054393
         87  |  -.1227679   .0284711    -4.31   0.000    -.1794977    -.066038
         88  |  -.0323153   .0104921    -3.08   0.003    -.0532213   -.0114092
         89  |   .0031272   .0059047     0.53   0.598    -.0086383    .0148926
             |
       _cons |   .9680582   .1438219     6.73   0.000     .6814868     1.25463
------------------------------------------------------------------------------

. reg marrm sr10a lnpopf urbshm i.yob i.regno [aweight=popm], cluster(regno);
(sum of wgt is   2.3490e+07)

Linear regression                               Number of obs     =      2,025
                                                F(28, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9967
                                                Root MSE          =     .02073

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
       marrm |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10a |   .0284321   .0308916     0.92   0.360    -.0331207    .0899849
      lnpopf |   .0169005   .0122548     1.38   0.172    -.0075178    .0413188
      urbshm |   .0494213   .0501959     0.98   0.328    -.0505962    .1494387
             |
         yob |
       1916  |   .0027251   .0028569     0.95   0.343    -.0029674    .0084177
       1917  |   .0024472   .0045951     0.53   0.596    -.0067088    .0116032
       1918  |   .0072695   .0074162     0.98   0.330    -.0075075    .0220465
       1919  |  -.0015426   .0016292    -0.95   0.347    -.0047889    .0017037
       1920  |     .00278   .0051916     0.54   0.594    -.0075644    .0131244
       1921  |  -.0036678   .0033159    -1.11   0.272     -.010275    .0029393
       1922  |  -.0044411   .0039915    -1.11   0.269    -.0123944    .0035122
       1923  |  -.0122223   .0019094    -6.40   0.000    -.0160268   -.0084178
       1924  |  -.0219342   .0024121    -9.09   0.000    -.0267404   -.0171279
       1925  |  -.0280154   .0034839    -8.04   0.000    -.0349572   -.0210735
       1926  |  -.0375493   .0046878    -8.01   0.000    -.0468899   -.0282086
       1927  |  -.0486971   .0066583    -7.31   0.000    -.0619641     -.03543
       1928  |  -.0564994   .0065548    -8.62   0.000    -.0695601   -.0434386
       1929  |  -.0764922   .0090731    -8.43   0.000    -.0945706   -.0584137
       1930  |  -.0962188   .0088995   -10.81   0.000    -.1139515   -.0784861
       1931  |  -.1277356   .0102594   -12.45   0.000    -.1481779   -.1072933
       1932  |  -.1654674   .0106791   -15.49   0.000     -.186746   -.1441888
       1933  |  -.2136276   .0119301   -17.91   0.000    -.2373989   -.1898564
       1934  |  -.2882606   .0126976   -22.70   0.000    -.3135611     -.26296
       1935  |  -.4040333   .0135595   -29.80   0.000    -.4310512   -.3770155
       1936  |  -.5558051   .0149825   -37.10   0.000    -.5856585   -.5259517
       1937  |  -.7261236   .0150925   -48.11   0.000    -.7561961    -.696051
       1938  |  -.8307763     .01479   -56.17   0.000    -.8602461   -.8013066
       1939  |  -.8860653   .0143157   -61.89   0.000    -.9145899   -.8575407
       1940  |  -.9294798   .0134355   -69.18   0.000    -.9562506   -.9027089
       1941  |  -.9589401   .0128975   -74.35   0.000    -.9846389   -.9332413
             |
       regno |
          2  |  -.0820944   .0125335    -6.55   0.000     -.107068   -.0571209
          3  |  -.0459173   .0077395    -5.93   0.000    -.0613385   -.0304961
          5  |  -.0067032   .0111327    -0.60   0.549    -.0288855    .0154792
          6  |  -.0370452   .0148543    -2.49   0.015    -.0666431   -.0074473
          7  |  -.0908079   .0318927    -2.85   0.006    -.1543556   -.0272603
          8  |  -.0052737    .007675    -0.69   0.494    -.0205666    .0100191
          9  |   .0120135    .009983     1.20   0.233     -.007878    .0319049
         10  |   .0179605   .0155125     1.16   0.251    -.0129487    .0488698
         11  |    .017442   .0118707     1.47   0.146     -.006211    .0410949
         12  |  -.0065719   .0083619    -0.79   0.434    -.0232334    .0100896
         13  |  -.0075949    .009351    -0.81   0.419    -.0262272    .0110374
         14  |   .0133729   .0089328     1.50   0.139    -.0044261    .0311719
         15  |    .003755   .0096382     0.39   0.698    -.0154496    .0229595
         16  |  -.0936491   .0358184    -2.61   0.011    -.1650188   -.0222793
         17  |  -.0434714   .0267536    -1.62   0.108    -.0967792    .0098363
         18  |   .0167371   .0161047     1.04   0.302    -.0153521    .0488263
         19  |   .0003499   .0127974     0.03   0.978    -.0251494    .0258493
         20  |   .0058583   .0119134     0.49   0.624    -.0178797    .0295962
         21  |  -.0100363   .0108614    -0.92   0.358    -.0316781    .0116055
         22  |  -.0085894   .0129329    -0.66   0.509    -.0343587    .0171799
         23  |  -.0253273   .0083059    -3.05   0.003    -.0418772   -.0087774
         24  |   .0399466   .0159798     2.50   0.015     .0081061    .0717871
         25  |   .0434699   .0193166     2.25   0.027     .0049808     .081959
         26  |   .0135397   .0159361     0.85   0.398    -.0182135     .045293
         27  |  -.0002387   .0125416    -0.02   0.985    -.0252283    .0247509
         28  |  -.0110522   .0190098    -0.58   0.563      -.04893    .0268256
         29  |   .0261984   .0177948     1.47   0.145    -.0092584    .0616552
         30  |  -.0029359   .0149771    -0.20   0.845    -.0327785    .0269066
         31  |   .0143354   .0181095     0.79   0.431    -.0217486    .0504194
         32  |   .0136381   .0118784     1.15   0.255      -.01003    .0373063
         33  |   .0094445    .015337     0.62   0.540    -.0211151    .0400041
         34  |   .0858158   .0305856     2.81   0.006     .0248727     .146759
         35  |  -.0161666   .0156933    -1.03   0.306    -.0474362     .015103
         36  |  -.0076364   .0039297    -1.94   0.056    -.0154665    .0001938
         37  |  -.0058603   .0113227    -0.52   0.606    -.0284212    .0167006
         38  |   .0171525   .0119191     1.44   0.154    -.0065968    .0409017
         39  |  -.0088943   .0154516    -0.58   0.567    -.0396824    .0218938
         40  |  -.0081647   .0127635    -0.64   0.524    -.0335965    .0172672
         41  |   .0340944   .0102592     3.32   0.001     .0136525    .0545363
         42  |   .0421819   .0211438     2.00   0.050      .000052    .0843119
         43  |   .0346705   .0125441     2.76   0.007     .0096758    .0596653
         44  |   .0320112   .0133019     2.41   0.019     .0055066    .0585159
         46  |  -.0655618    .007472    -8.77   0.000    -.0804501   -.0506735
         47  |   .0331908   .0084355     3.93   0.000     .0163828    .0499988
         49  |   .0053039   .0193145     0.27   0.784    -.0331811    .0437889
         50  |   .0269144   .0153753     1.75   0.084    -.0037216    .0575504
         51  |  -.0084113    .018912    -0.44   0.658    -.0460943    .0292716
         52  |   .0133868   .0176704     0.76   0.451    -.0218222    .0485958
         53  |   .0407613   .0081096     5.03   0.000     .0246026    .0569199
         54  |   .0561279   .0112183     5.00   0.000      .033775    .0784809
         55  |    .021336   .0107451     1.99   0.051    -.0000741    .0427461
         56  |  -.0307215   .0180224    -1.70   0.092    -.0666319    .0051889
         58  |  -.0380373   .0255491    -1.49   0.141    -.0889449    .0128703
         59  |  -.0111914   .0228815    -0.49   0.626    -.0567837    .0344009
         61  |   .0411982    .016627     2.48   0.016     .0080681    .0743282
         62  |  -.0136608   .0224312    -0.61   0.544    -.0583559    .0310344
         63  |   .0114266   .0144698     0.79   0.432    -.0174051    .0402582
         64  |   .0264467   .0102668     2.58   0.012     .0059895    .0469038
         65  |   .0127814   .0035188     3.63   0.001     .0057701    .0197927
         66  |   .0414966   .0127221     3.26   0.002     .0161473    .0668458
         69  |   .0265694   .0086703     3.06   0.003     .0092934    .0438454
         70  |   .0635764    .025655     2.48   0.015     .0124577    .1146951
         71  |   .0520344   .0075598     6.88   0.000     .0369712    .0670975
         72  |  -.0237538   .0162125    -1.47   0.147     -.056058    .0085504
         75  |   -.042896   .0151871    -2.82   0.006     -.073157   -.0126351
         77  |   .0247191    .004136     5.98   0.000     .0164779    .0329603
         79  |  -.1131296   .0087839   -12.88   0.000    -.1306318   -.0956273
         82  |  -.0310401   .0110373    -2.81   0.006    -.0530324   -.0090478
         83  |  -.0205986   .0106619    -1.93   0.057    -.0418428    .0006456
         84  |   .0109653   .0019786     5.54   0.000     .0070228    .0149077
         85  |  -.0252708   .0126954    -1.99   0.050    -.0505668    .0000253
         87  |  -.1496504   .0209887    -7.13   0.000    -.1914714   -.1078295
         88  |  -.0342828   .0087965    -3.90   0.000    -.0518102   -.0167553
         89  |    .010129   .0048912     2.07   0.042     .0003832    .0198749
             |
       _cons |   .7670814   .1244234     6.17   0.000     .5191624       1.015
------------------------------------------------------------------------------

. reg marrm sr10a lnpopf urbshm i.yob i.regno i.regno#c.time, cluster(regno);
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      2,025
                                                F(27, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9966
                                                Root MSE          =     .01979

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
       marrm |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10a |   .1781357   .0488077     3.65   0.000     .0808844    .2753871
      lnpopf |  -.0054887   .0119983    -0.46   0.649    -.0293958    .0184184
      urbshm |  -.0498868   .0810072    -0.62   0.540    -.2112972    .1115236
             |
         yob |
       1916  |  -.0014469   .0026937    -0.54   0.593    -.0068142    .0039203
       1917  |  -.0029783   .0040949    -0.73   0.469    -.0111376    .0051809
       1918  |  -.0020765   .0071231    -0.29   0.771    -.0162696    .0121165
       1919  |   .0007739   .0025274     0.31   0.760    -.0042622    .0058099
       1920  |  -.0014161   .0056034    -0.25   0.801    -.0125811    .0097488
       1921  |  -.0015082    .004306    -0.35   0.727    -.0100881    .0070717
       1922  |  -.0029331   .0053645    -0.55   0.586    -.0136221    .0077558
       1923  |  -.0054262   .0037902    -1.43   0.156    -.0129783    .0021259
       1924  |  -.0108232   .0029092    -3.72   0.000    -.0166199   -.0050265
       1925  |  -.0174691    .002599    -6.72   0.000    -.0226476   -.0122905
       1926  |  -.0279945   .0035452    -7.90   0.000    -.0350585   -.0209305
       1927  |  -.0377727   .0062821    -6.01   0.000    -.0502899   -.0252554
       1928  |  -.0510509   .0056919    -8.97   0.000    -.0623923   -.0397095
       1929  |  -.0703803   .0077781    -9.05   0.000    -.0858784   -.0548821
       1930  |  -.0962256   .0066981   -14.37   0.000    -.1095718   -.0828793
       1931  |   -.130001   .0077446   -16.79   0.000    -.1454324   -.1145697
       1932  |  -.1733575   .0074601   -23.24   0.000     -.188222   -.1584929
       1933  |  -.2209973   .0083995   -26.31   0.000    -.2377338   -.2042609
       1934  |  -.3015253   .0087114   -34.61   0.000    -.3188831   -.2841675
       1935  |  -.4183605   .0095203   -43.94   0.000    -.4373301   -.3993908
       1936  |  -.5677689   .0119855   -47.37   0.000    -.5916506   -.5438872
       1937  |  -.7342692   .0132748   -55.31   0.000    -.7607198   -.7078187
       1938  |  -.8394506   .0141655   -59.26   0.000     -.867676   -.8112251
       1939  |  -.8943797   .0143717   -62.23   0.000    -.9230159   -.8657436
       1940  |  -.9402962   .0137821   -68.23   0.000    -.9677575   -.9128348
       1941  |  -.9679576   .0136562   -70.88   0.000    -.9951681    -.940747
             |
       regno |
          2  |   -.091536   .0171143    -5.35   0.000    -.1256371   -.0574349
          3  |  -.0008943   .0059211    -0.15   0.880    -.0126923    .0109037
          5  |    .025259   .0158524     1.59   0.115    -.0063276    .0568457
          6  |   .0055414   .0210977     0.26   0.794    -.0364966    .0475794
          7  |   .0240382    .048542     0.50   0.622    -.0726839    .1207603
          8  |   .0032842   .0073397     0.45   0.656    -.0113405    .0179089
          9  |   .0117791   .0142077     0.83   0.410    -.0165305    .0400886
         10  |   .0033988   .0211816     0.16   0.873    -.0388064    .0456039
         11  |   .0319791   .0114153     2.80   0.006     .0092337    .0547246
         12  |   .0167974     .00802     2.09   0.040     .0008172    .0327775
         13  |   .0364327   .0133767     2.72   0.008      .009779    .0630864
         14  |   .0158225   .0126607     1.25   0.215    -.0094044    .0410494
         15  |   .0141413   .0147951     0.96   0.342    -.0153386    .0436213
         16  |   .0035979   .0535525     0.07   0.947    -.1031078    .1103035
         17  |   .0107944   .0277037     0.39   0.698    -.0444065    .0659953
         18  |   .0077433   .0259187     0.30   0.766    -.0439009    .0593875
         19  |   .0104265   .0185743     0.56   0.576    -.0265836    .0474365
         20  |   .0181894   .0159385     1.14   0.257    -.0135687    .0499476
         21  |   .0147607    .009957     1.48   0.142     -.005079    .0346004
         22  |   .0085151   .0171046     0.50   0.620    -.0255665    .0425968
         23  |   .0218623   .0106436     2.05   0.044     .0006545    .0430701
         24  |   .0247866   .0270234     0.92   0.362    -.0290588    .0786319
         25  |   .0005149   .0305079     0.02   0.987    -.0602735    .0613033
         26  |   .0153099   .0230666     0.66   0.509    -.0306512     .061271
         27  |   .0253896   .0117994     2.15   0.035     .0018788    .0489005
         28  |    .026666   .0187086     1.43   0.158    -.0106117    .0639437
         29  |   .0174687     .02629     0.66   0.508    -.0349152    .0698526
         30  |   .0159715   .0123688     1.29   0.201    -.0086738    .0406168
         31  |   .0106853   .0249315     0.43   0.669    -.0389917    .0603624
         32  |   .0123441   .0191442     0.64   0.521    -.0258016    .0504898
         33  |   .0040886   .0200641     0.20   0.839      -.03589    .0440673
         34  |  -.0631652   .0496843    -1.27   0.208    -.1621634     .035833
         35  |   .0341024   .0107529     3.17   0.002     .0126768     .055528
         36  |  -.0036493   .0064647    -0.56   0.574    -.0165306    .0092319
         37  |  -.0000661    .011433    -0.01   0.995    -.0228469    .0227146
         38  |   .0129288   .0161566     0.80   0.426    -.0192639    .0451214
         39  |   .0065379   .0204106     0.32   0.750     -.034131    .0472068
         40  |   .0064573    .012292     0.53   0.601     -.018035    .0309496
         41  |   .0134491   .0139358     0.97   0.338    -.0143185    .0412167
         42  |  -.0284803   .0270393    -1.05   0.296    -.0823574    .0253967
         43  |   -.027366   .0196744    -1.39   0.168    -.0665681    .0118361
         44  |  -.0276063   .0132838    -2.08   0.041    -.0540749   -.0011377
         46  |  -.0183006   .0077036    -2.38   0.020    -.0336503   -.0029509
         47  |  -.0452552   .0139679    -3.24   0.002    -.0730869   -.0174234
         49  |  -.0078019   .0163645    -0.48   0.635    -.0404089     .024805
         50  |  -.0177486   .0137579    -1.29   0.201    -.0451618    .0096645
         51  |  -.0060702   .0189462    -0.32   0.750    -.0438213    .0316809
         52  |   .0253577   .0116744     2.17   0.033      .002096    .0486193
         53  |   .0224632   .0062149     3.61   0.001     .0100798    .0348466
         54  |   .0007367   .0194341     0.04   0.970    -.0379865      .03946
         55  |   .0129216   .0084495     1.53   0.130    -.0039143    .0297576
         56  |  -.0082394   .0182724    -0.45   0.653     -.044648    .0281692
         58  |   .0014614   .0320383     0.05   0.964    -.0623764    .0652991
         59  |   .0031057   .0288766     0.11   0.915    -.0544321    .0606435
         61  |  -.0040701   .0155848    -0.26   0.795    -.0351234    .0269833
         62  |  -.0004165   .0277235    -0.02   0.988    -.0556568    .0548238
         63  |   .0082366   .0140068     0.59   0.558    -.0196726    .0361459
         64  |  -.0072976   .0092166    -0.79   0.431     -.025662    .0110668
         65  |   -.024327    .012748    -1.91   0.060    -.0497279    .0010739
         66  |  -.0234665   .0190319    -1.23   0.221    -.0613883    .0144554
         69  |  -.0376132   .0167259    -2.25   0.028    -.0709403    -.004286
         70  |  -.1717394   .0408996    -4.20   0.000    -.2532336   -.0902452
         71  |  -.0283804   .0110711    -2.56   0.012    -.0504401   -.0063208
         72  |  -.0396681   .0149821    -2.65   0.010    -.0695206   -.0098156
         75  |  -.0693198    .020849    -3.32   0.001    -.1108622   -.0277773
         77  |  -.0209599   .0077301    -2.71   0.008    -.0363625   -.0055574
         79  |  -.2317163   .0216517   -10.70   0.000    -.2748583   -.1885743
         82  |  -.0323963   .0188034    -1.72   0.089     -.069863    .0050703
         83  |  -.0581465   .0236678    -2.46   0.016    -.1053056   -.0109873
         84  |  -.0537469   .0135927    -3.95   0.000    -.0808309   -.0266629
         85  |  -.1421301     .01757    -8.09   0.000    -.1771391    -.107121
         87  |  -.3421083   .0568269    -6.02   0.000    -.4553383   -.2288782
         88  |  -.1352268   .0224886    -6.01   0.000    -.1800363   -.0904172
         89  |   -.006433   .0042835    -1.50   0.137     -.014968     .002102
             |
regno#c.time |
          1  |  -.0024453   .0004952    -4.94   0.000    -.0034319   -.0014587
          2  |  -.0049845   .0007968    -6.26   0.000    -.0065723   -.0033968
          3  |  -.0059629   .0009515    -6.27   0.000    -.0078588   -.0040669
          5  |  -.0052107    .000776    -6.71   0.000    -.0067569   -.0036645
          6  |  -.0036952   .0005226    -7.07   0.000    -.0047364   -.0026539
          7  |   -.004301   .0002717   -15.83   0.000    -.0048423   -.0037596
          8  |  -.0023159   .0002971    -7.80   0.000    -.0029078   -.0017239
          9  |  -.0034142   .0005841    -5.85   0.000     -.004578   -.0022503
         10  |  -.0027859   .0005231    -5.33   0.000    -.0038283   -.0017435
         11  |  -.0027429   .0004025    -6.81   0.000    -.0035449   -.0019409
         12  |  -.0025555   .0003265    -7.83   0.000     -.003206    -.001905
         13  |  -.0031964   .0004488    -7.12   0.000    -.0040906   -.0023021
         14  |  -.0029721   .0005243    -5.67   0.000    -.0040168   -.0019274
         15  |  -.0041523   .0006947    -5.98   0.000    -.0055366    -.002768
         16  |  -.0028984   .0002457   -11.80   0.000    -.0033879   -.0024088
         17  |  -.0023928   .0001792   -13.35   0.000    -.0027499   -.0020358
         18  |  -.0034079   .0005175    -6.59   0.000    -.0044391   -.0023768
         19  |  -.0039126   .0006269    -6.24   0.000    -.0051617   -.0026634
         20  |  -.0037879     .00063    -6.01   0.000    -.0050433   -.0025325
         21  |  -.0033887   .0005107    -6.64   0.000    -.0044062   -.0023711
         22  |  -.0020644   .0003706    -5.57   0.000    -.0028028    -.001326
         23  |   -.004205   .0004823    -8.72   0.000     -.005166   -.0032439
         24  |  -.0025753   .0004551    -5.66   0.000    -.0034822   -.0016684
         25  |  -.0008747   .0004266    -2.05   0.044    -.0017246   -.0000248
         26  |  -.0028294   .0003419    -8.28   0.000    -.0035107   -.0021482
         27  |  -.0042083   .0007548    -5.58   0.000    -.0057123   -.0027043
         28  |  -.0026274   .0004531    -5.80   0.000    -.0035302   -.0017246
         29  |  -.0029297   .0004572    -6.41   0.000    -.0038407   -.0020187
         30  |  -.0030616   .0004319    -7.09   0.000    -.0039221   -.0022011
         31  |  -.0033959   .0004915    -6.91   0.000    -.0043752   -.0024165
         32  |  -.0029889    .000504    -5.93   0.000    -.0039931   -.0019847
         33  |  -.0031761   .0005249    -6.05   0.000    -.0042221   -.0021302
         34  |   .0013592   .0003795     3.58   0.001     .0006031    .0021153
         35  |  -.0040723   .0004517    -9.01   0.000    -.0049724   -.0031722
         36  |  -.0036484   .0003679    -9.92   0.000    -.0043814   -.0029153
         37  |  -.0016878   .0002943    -5.74   0.000    -.0022742   -.0011014
         38  |  -.0022936   .0004061    -5.65   0.000    -.0031029   -.0014844
         39  |   -.001624   .0002353    -6.90   0.000    -.0020927   -.0011552
         40  |  -.0023122   .0003851    -6.00   0.000    -.0030795   -.0015448
         41  |  -.0016967   .0004109    -4.13   0.000    -.0025154    -.000878
         42  |  -.0007642   .0004365    -1.75   0.084    -.0016339    .0001055
         43  |    .000482   .0001941     2.48   0.015     .0000952    .0008688
         44  |  -.0008208   .0006247    -1.31   0.193    -.0020656    .0004241
         46  |  -.0063444   .0003101   -20.46   0.000    -.0069622   -.0057265
         47  |   .0015756   .0002183     7.22   0.000     .0011406    .0020106
         49  |  -.0004881    .000481    -1.01   0.314    -.0014466    .0004703
         50  |   9.26e-06   .0005175     0.02   0.986    -.0010219    .0010405
         51  |  -.0006157   .0003488    -1.77   0.082    -.0013108    .0000793
         52  |  -.0019131   .0003828    -5.00   0.000     -.002676   -.0011503
         53  |  -.0005268   .0004293    -1.23   0.224    -.0013822    .0003286
         54  |   .0003051   .0004667     0.65   0.515    -.0006249    .0012351
         55  |  -.0013243   .0003886    -3.41   0.001    -.0020985   -.0005501
         56  |  -.0020537   .0004553    -4.51   0.000     -.002961   -.0011465
         58  |   -.001945   .0003897    -4.99   0.000    -.0027215   -.0011685
         59  |  -.0003629   .0002759    -1.32   0.192    -.0009127    .0001868
         61  |   .0008372   .0004499     1.86   0.067    -.0000592    .0017336
         62  |  -.0009878      .0005    -1.98   0.052     -.001984    8.51e-06
         63  |  -.0005615   .0003287    -1.71   0.092    -.0012164    .0000935
         64  |   .0001215   .0002928     0.42   0.679    -.0004618    .0007049
         65  |  -.0008138   .0005706    -1.43   0.158    -.0019508    .0003231
         66  |   .0008605   .0003315     2.60   0.011        .0002    .0015209
         69  |   .0005833   .0000196    29.84   0.000     .0005444    .0006223
         70  |   .0081553   .0005319    15.33   0.000     .0070954    .0092151
         71  |   .0014802   .0002404     6.16   0.000     .0010012    .0019592
         72  |  -.0008404   .0005121    -1.64   0.105    -.0018607      .00018
         75  |  -.0006545   .0002821    -2.32   0.023    -.0012166   -.0000924
         77  |   .0006686    .000139     4.81   0.000     .0003916    .0009455
         79  |   .0026429   .0003786     6.98   0.000     .0018885    .0033974
         82  |   -.001338   .0001276   -10.48   0.000    -.0015923   -.0010837
         83  |   .0007278   .0002927     2.49   0.015     .0001445     .001311
         84  |   .0010169   .0003182     3.20   0.002     .0003829    .0016508
         85  |   .0024082   .0002823     8.53   0.000     .0018457    .0029707
         87  |   .0056673    .001653     3.43   0.001     .0023736     .008961
         88  |   .0036015    .000271    13.29   0.000     .0030614    .0041415
         89  |          0  (omitted)
             |
       _cons |   .9424043   .1622095     5.81   0.000     .6191949    1.265614
------------------------------------------------------------------------------

. reg marrm sr10a lnpopf urbshm i.yob i.regno i.regno#c.time [aweight=popm], cluster(regno);
(sum of wgt is   2.3490e+07)
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      2,025
                                                F(27, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9975
                                                Root MSE          =      .0184

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
       marrm |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10a |   .1854299   .0582292     3.18   0.002     .0694056    .3014541
      lnpopf |  -.0039761   .0116251    -0.34   0.733    -.0271395    .0191873
      urbshm |  -.0642355   .0617827    -1.04   0.302    -.1873402    .0588693
             |
         yob |
       1916  |  -.0013977   .0026779    -0.52   0.603    -.0067335    .0039382
       1917  |  -.0034205   .0043772    -0.78   0.437    -.0121423    .0053013
       1918  |  -.0029626   .0072126    -0.41   0.682     -.017334    .0114087
       1919  |  -.0021977   .0022666    -0.97   0.335     -.006714    .0023186
       1920  |  -.0037291   .0056347    -0.66   0.510    -.0149566    .0074983
       1921  |  -.0057355   .0041201    -1.39   0.168     -.013945     .002474
       1922  |  -.0079438   .0050207    -1.58   0.118    -.0179478    .0020602
       1923  |  -.0115358   .0032916    -3.50   0.001    -.0180944   -.0049772
       1924  |  -.0190631   .0021468    -8.88   0.000    -.0233406   -.0147855
       1925  |   -.026278   .0022105   -11.89   0.000    -.0306825   -.0218735
       1926  |  -.0377786    .003876    -9.75   0.000    -.0455016   -.0300555
       1927  |  -.0485134   .0063955    -7.59   0.000    -.0612568     -.03577
       1928  |  -.0625065   .0068699    -9.10   0.000     -.076195    -.048818
       1929  |  -.0829156   .0089556    -9.26   0.000    -.1007601   -.0650711
       1930  |  -.1103418   .0093478   -11.80   0.000    -.1289678   -.0917158
       1931  |  -.1438314   .0104801   -13.72   0.000    -.1647135   -.1229492
       1932  |  -.1872435   .0112236   -16.68   0.000     -.209607     -.16488
       1933  |  -.2368401   .0122782   -19.29   0.000     -.261305   -.2123751
       1934  |  -.3180947   .0135038   -23.56   0.000    -.3450015   -.2911879
       1935  |  -.4364403   .0148035   -29.48   0.000    -.4659369   -.4069437
       1936  |  -.5883368   .0165734   -35.50   0.000    -.6213599   -.5553136
       1937  |  -.7588435   .0170049   -44.63   0.000    -.7927264   -.7249605
       1938  |  -.8627861   .0168554   -51.19   0.000    -.8963713    -.829201
       1939  |  -.9170377   .0166727   -55.00   0.000    -.9502588   -.8838167
       1940  |  -.9620779   .0162255   -59.29   0.000    -.9944078   -.9297479
       1941  |  -.9918512   .0158046   -62.76   0.000    -1.023342   -.9603599
             |
       regno |
          2  |  -.1129721   .0159107    -7.10   0.000    -.1446749   -.0812694
          3  |  -.0148811   .0077963    -1.91   0.060    -.0304155    .0006534
          5  |   .0259838    .015013     1.73   0.088    -.0039302    .0558978
          6  |   .0132236   .0174446     0.76   0.451    -.0215356    .0479828
          7  |   .0232631   .0381865     0.61   0.544    -.0528251    .0993513
          8  |   .0061337   .0092685     0.66   0.510    -.0123343    .0246017
          9  |   .0144913   .0110197     1.32   0.193     -.007466    .0364485
         10  |   .0044641   .0172389     0.26   0.796    -.0298851    .0388134
         11  |   .0407032   .0121698     3.34   0.001     .0164543    .0649521
         12  |   .0184709   .0091696     2.01   0.048     .0002001    .0367417
         13  |   .0384581   .0115094     3.34   0.001     .0155251    .0613911
         14  |    .021628   .0107669     2.01   0.048     .0001744    .0430815
         15  |   .0128122   .0120857     1.06   0.293     -.011269    .0368935
         16  |   .0004644   .0428009     0.01   0.991    -.0848183     .085747
         17  |   .0089199   .0278125     0.32   0.749    -.0464976    .0643375
         18  |   .0079599   .0208258     0.38   0.703    -.0335364    .0494562
         19  |   .0101094    .016348     0.62   0.538    -.0224646    .0426834
         20  |   .0216305   .0147513     1.47   0.147    -.0077621    .0510231
         21  |   .0134558   .0125011     1.08   0.285    -.0114531    .0383648
         22  |   .0108222   .0165531     0.65   0.515    -.0221605    .0438049
         23  |   .0202046   .0103674     1.95   0.055    -.0004528     .040862
         24  |   .0300242   .0211042     1.42   0.159    -.0120268    .0720752
         25  |   .0010495   .0241072     0.04   0.965    -.0469851    .0490841
         26  |   .0205151   .0184864     1.11   0.271    -.0163199    .0573502
         27  |   .0263517   .0129411     2.04   0.045     .0005661    .0521374
         28  |   .0297747   .0196475     1.52   0.134    -.0093738    .0689232
         29  |   .0168468   .0219994     0.77   0.446    -.0269879    .0606816
         30  |    .013564   .0152105     0.89   0.375    -.0167436    .0438715
         31  |   .0083332   .0213707     0.39   0.698    -.0342489    .0509154
         32  |   .0125719   .0157296     0.80   0.427    -.0187699    .0439138
         33  |   .0008112   .0178883     0.05   0.964    -.0348321    .0364545
         34  |  -.0617715   .0397779    -1.55   0.125    -.1410308    .0174878
         35  |   .0388958   .0137536     2.83   0.006     .0114912    .0663004
         36  |  -.0035899   .0071013    -0.51   0.615    -.0177395    .0105598
         37  |  -.0005839   .0128905    -0.05   0.964    -.0262689     .025101
         38  |   .0133313   .0147282     0.91   0.368    -.0160153    .0426778
         39  |   .0114489   .0194627     0.59   0.558    -.0273314    .0502291
         40  |   .0052348   .0133732     0.39   0.697    -.0214119    .0318816
         41  |   .0179887   .0113446     1.59   0.117    -.0046158    .0405933
         42  |  -.0324551   .0228098    -1.42   0.159    -.0779046    .0129943
         43  |  -.0319847   .0173335    -1.85   0.069    -.0665224     .002553
         44  |  -.0275375     .01505    -1.83   0.071    -.0575254    .0024504
         46  |   -.043995   .0091037    -4.83   0.000    -.0621345   -.0258555
         47  |  -.0500277   .0142468    -3.51   0.001     -.078415   -.0216404
         49  |  -.0096222     .01919    -0.50   0.618    -.0478591    .0286147
         50  |  -.0205337   .0150529    -1.36   0.177    -.0505272    .0094598
         51  |  -.0057655   .0186908    -0.31   0.759    -.0430078    .0314768
         52  |   .0313244   .0151026     2.07   0.042     .0012318    .0614169
         53  |   .0288412   .0073182     3.94   0.000     .0142594     .043423
         54  |   .0030776   .0160769     0.19   0.849    -.0289564    .0351117
         55  |   .0175058    .010202     1.72   0.090    -.0028222    .0378338
         56  |  -.0159759   .0182014    -0.88   0.383     -.052243    .0202912
         58  |  -.0046029   .0278144    -0.17   0.869    -.0600243    .0508184
         59  |    .006567   .0246386     0.27   0.791    -.0425264    .0556604
         61  |  -.0042154   .0177745    -0.24   0.813    -.0396318     .031201
         62  |   .0021127   .0236317     0.09   0.929    -.0449744    .0491998
         63  |   .0111299   .0141059     0.79   0.433    -.0169767    .0392366
         64  |  -.0065909   .0105791    -0.62   0.535    -.0276702    .0144884
         65  |  -.0221427   .0119383    -1.85   0.068    -.0459303    .0016449
         66  |  -.0267077    .015847    -1.69   0.096    -.0582837    .0048682
         69  |  -.0391485   .0150138    -2.61   0.011    -.0690642   -.0092328
         70  |   -.173467   .0376062    -4.61   0.000     -.248399    -.098535
         71  |  -.0260823    .010612    -2.46   0.016    -.0472271   -.0049375
         72  |  -.0497358   .0169213    -2.94   0.004    -.0834522   -.0160194
         75  |  -.0860806   .0209614    -4.11   0.000    -.1278472   -.0443141
         77  |  -.0154466   .0083298    -1.85   0.068    -.0320441    .0011508
         79  |  -.2542608   .0283512    -8.97   0.000    -.3107518   -.1977698
         82  |  -.0281559   .0166944    -1.69   0.096    -.0614201    .0051084
         83  |  -.0573377    .022092    -2.60   0.011    -.1013569   -.0133185
         84  |  -.0488255   .0157203    -3.11   0.003     -.080149   -.0175021
         85  |  -.1461484   .0208803    -7.00   0.000    -.1877532   -.1045436
         87  |  -.3383864   .0653749    -5.18   0.000    -.4686488   -.2081241
         88  |   -.132443   .0231122    -5.73   0.000    -.1784951   -.0863909
         89  |   .0117665   .0040575     2.90   0.005     .0036818    .0198513
             |
regno#c.time |
          1  |  -.0016166   .0004947    -3.27   0.002    -.0026024   -.0006308
          2  |  -.0031752   .0009921    -3.20   0.002     -.005152   -.0011984
          3  |  -.0044471   .0010967    -4.06   0.000    -.0066323   -.0022619
          5  |  -.0045412   .0008331    -5.45   0.000    -.0062013   -.0028812
          6  |  -.0030256   .0007297    -4.15   0.000    -.0044794   -.0015717
          7  |  -.0031054   .0001852   -16.77   0.000    -.0034744   -.0027363
          8  |  -.0016807   .0001784    -9.42   0.000    -.0020361   -.0013253
          9  |  -.0028296   .0005481    -5.16   0.000    -.0039217   -.0017375
         10  |  -.0022129   .0004445    -4.98   0.000    -.0030985   -.0013273
         11  |  -.0025609   .0002973    -8.61   0.000    -.0031533   -.0019685
         12  |  -.0017966   .0001845    -9.74   0.000    -.0021642    -.001429
         13  |   -.002376   .0002805    -8.47   0.000    -.0029349   -.0018171
         14  |   -.002579   .0004963    -5.20   0.000    -.0035678   -.0015902
         15  |  -.0033644   .0006739    -4.99   0.000    -.0047071   -.0020218
         16  |  -.0015224   .0001483   -10.26   0.000     -.001818   -.0012269
         17  |  -.0015152    .000039   -38.81   0.000     -.001593   -.0014374
         18  |   -.002799   .0005056    -5.54   0.000    -.0038065   -.0017915
         19  |  -.0032845   .0006468    -5.08   0.000    -.0045733   -.0019957
         20  |  -.0033252   .0006419    -5.18   0.000    -.0046043   -.0020461
         21  |  -.0025952   .0004773    -5.44   0.000    -.0035462   -.0016443
         22  |  -.0013657   .0002691    -5.07   0.000    -.0019019   -.0008294
         23  |  -.0031643   .0003961    -7.99   0.000    -.0039535   -.0023751
         24  |  -.0021351    .000393    -5.43   0.000    -.0029181   -.0013521
         25  |  -.0003721   .0003826    -0.97   0.334    -.0011345    .0003902
         26  |   -.002433   .0002381   -10.22   0.000    -.0029075   -.0019586
         27  |  -.0036311   .0007828    -4.64   0.000    -.0051908   -.0020713
         28  |  -.0020927   .0003838    -5.45   0.000    -.0028574    -.001328
         29  |  -.0023035   .0004195    -5.49   0.000    -.0031395   -.0014675
         30  |  -.0022537    .000337    -6.69   0.000    -.0029252   -.0015822
         31  |  -.0026946   .0004337    -6.21   0.000    -.0035587   -.0018305
         32  |   -.002308   .0004961    -4.65   0.000    -.0032965   -.0013195
         33  |  -.0024098   .0004914    -4.90   0.000    -.0033889   -.0014306
         34  |   .0018676   .0003891     4.80   0.000     .0010923     .002643
         35  |  -.0036206   .0003639    -9.95   0.000    -.0043456   -.0028955
         36  |  -.0027629   .0003062    -9.02   0.000     -.003373   -.0021528
         37  |  -.0008826   .0002103    -4.20   0.000    -.0013017   -.0004636
         38  |  -.0017267   .0003565    -4.84   0.000    -.0024371   -.0010163
         39  |  -.0010707   .0001095    -9.78   0.000     -.001289   -.0008525
         40  |   -.001496   .0003273    -4.57   0.000    -.0021481   -.0008439
         41  |  -.0013266   .0003229    -4.11   0.000      -.00197   -.0006831
         42  |   .0003024   .0001552     1.95   0.055    -6.74e-06    .0006116
         43  |   .0014222   .0002403     5.92   0.000     .0009433    .0019011
         44  |  -3.83e-07   .0004313    -0.00   0.999    -.0008598     .000859
         46  |  -.0036037   .0001632   -22.08   0.000    -.0039289   -.0032786
         47  |   .0026299   .0002947     8.92   0.000     .0020427    .0032171
         49  |   .0000981   .0002701     0.36   0.718    -.0004402    .0006363
         50  |   .0006758   .0002664     2.54   0.013      .000145    .0012066
         51  |   .0000892   .0003237     0.28   0.784    -.0005558    .0007341
         52  |  -.0015937   .0002825    -5.64   0.000    -.0021566   -.0010309
         53  |  -.0001248   .0003363    -0.37   0.712    -.0007949    .0005453
         54  |   .0007154   .0004802     1.49   0.141    -.0002414    .0016721
         55  |  -.0009364   .0003607    -2.60   0.011    -.0016551   -.0002176
         56  |   -.000876   .0004142    -2.11   0.038    -.0017014   -.0000507
         58  |  -.0007735   .0003286    -2.35   0.021    -.0014283   -.0001188
         59  |   .0003182   .0002476     1.28   0.203    -.0001752    .0008116
         61  |   .0012943   .0004826     2.68   0.009     .0003327    .0022559
         62  |  -.0002925    .000501    -0.58   0.561    -.0012908    .0007059
         63  |   .0000134   .0003065     0.04   0.965    -.0005973    .0006241
         64  |   .0007812   .0002342     3.33   0.001     .0003144    .0012479
         65  |  -.0001858   .0006327    -0.29   0.770    -.0014463    .0010748
         66  |   .0016586   .0002776     5.97   0.000     .0011053    .0022118
         69  |   .0014183   .0001876     7.56   0.000     .0010445     .001792
         70  |   .0089301   .0008051    11.09   0.000     .0073259    .0105343
         71  |   .0021422   .0002009    10.66   0.000     .0017418    .0025426
         72  |   .0004254    .000517     0.82   0.413    -.0006048    .0014556
         75  |   .0010668   .0002516     4.24   0.000     .0005656    .0015681
         77  |   .0010924    .000092    11.88   0.000     .0009091    .0012756
         79  |   .0043686   .0005215     8.38   0.000     .0033294    .0054078
         82  |  -.0007513   .0001708    -4.40   0.000    -.0010916   -.0004111
         83  |    .001635    .000382     4.28   0.000     .0008738    .0023962
         84  |    .001492   .0003228     4.62   0.000     .0008488    .0021352
         85  |   .0036066   .0003078    11.72   0.000     .0029933    .0042198
         87  |   .0058994   .0019104     3.09   0.003     .0020928    .0097059
         88  |   .0044865   .0003691    12.16   0.000     .0037512    .0052219
         89  |          0  (omitted)
             |
       _cons |   .9321284   .1376646     6.77   0.000     .6578257    1.206431
------------------------------------------------------------------------------

. *  Urban age 18-44;
. reg marrmu sr10u lnpopfu i.yob i.regno, cluster(regno);

Linear regression                               Number of obs     =      2,025
                                                F(27, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9961
                                                Root MSE          =     .02102

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrmu |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10u |   .0183959   .0248136     0.74   0.461    -.0310463    .0678381
     lnpopfu |  -.0018066   .0161414    -0.11   0.911    -.0339692    .0303559
             |
         yob |
       1916  |  -.0021768   .0031233    -0.70   0.488    -.0084002    .0040466
       1917  |  -.0037934   .0051839    -0.73   0.467    -.0141226    .0065358
       1918  |  -.0040365   .0080895    -0.50   0.619    -.0201551    .0120821
       1919  |  -.0034481   .0011091    -3.11   0.003     -.005658   -.0012383
       1920  |  -.0067945   .0052807    -1.29   0.202    -.0173165    .0037275
       1921  |  -.0088537   .0023434    -3.78   0.000    -.0135231   -.0041844
       1922  |  -.0119593    .003217    -3.72   0.000    -.0183693   -.0055493
       1923  |  -.0168874   .0011989   -14.09   0.000    -.0192763   -.0144985
       1924  |  -.0235713    .003392    -6.95   0.000      -.03033   -.0168125
       1925  |  -.0304394   .0041411    -7.35   0.000    -.0386907    -.022188
       1926  |  -.0370536   .0045795    -8.09   0.000    -.0461785   -.0279287
       1927  |  -.0444525   .0061694    -7.21   0.000    -.0567452   -.0321598
       1928  |  -.0567365    .004732   -11.99   0.000    -.0661653   -.0473077
       1929  |  -.0769478   .0073117   -10.52   0.000    -.0915166    -.062379
       1930  |  -.1026254   .0055407   -18.52   0.000    -.1136654   -.0915854
       1931  |  -.1376355   .0062637   -21.97   0.000    -.1501162   -.1251548
       1932  |   -.182776    .006446   -28.35   0.000      -.19562   -.1699319
       1933  |  -.2333486   .0067165   -34.74   0.000    -.2467315   -.2199658
       1934  |  -.3153264   .0081949   -38.48   0.000    -.3316551   -.2989978
       1935  |  -.4323471   .0084348   -51.26   0.000    -.4491538   -.4155404
       1936  |  -.5767789   .0091457   -63.07   0.000    -.5950021   -.5585558
       1937  |  -.7327494   .0100839   -72.67   0.000     -.752842   -.7126568
       1938  |  -.8280045   .0110564   -74.89   0.000     -.850035   -.8059741
       1939  |  -.8814397   .0112936   -78.05   0.000    -.9039427   -.8589367
       1940  |  -.9228567   .0100714   -91.63   0.000    -.9429244   -.9027891
       1941  |  -.9513414   .0090052  -105.64   0.000    -.9692846   -.9333982
             |
       regno |
          2  |  -.0727838   .0110782    -6.57   0.000    -.0948576   -.0507101
          3  |  -.0299551   .0069206    -4.33   0.000    -.0437448   -.0161654
          5  |  -.0136148   .0008166   -16.67   0.000    -.0152419   -.0119877
          6  |  -.0170034   .0040639    -4.18   0.000    -.0251009   -.0089058
          7  |  -.0365354   .0348017    -1.05   0.297    -.1058793    .0328085
          8  |    .002103   .0071756     0.29   0.770    -.0121946    .0164006
          9  |  -.0001353     .00643    -0.02   0.983    -.0129474    .0126769
         10  |   .0014294   .0071051     0.20   0.841    -.0127278    .0155865
         11  |   .0026094   .0034067     0.77   0.446    -.0041786    .0093975
         12  |   .0041731   .0105432     0.40   0.693    -.0168347    .0251808
         13  |   .0082346   .0128284     0.64   0.523    -.0173264    .0337957
         14  |   .0015003   .0036361     0.41   0.681    -.0057448    .0087455
         15  |   .0097102   .0020966     4.63   0.000     .0055325    .0138878
         16  |  -.0356193   .0404983    -0.88   0.382    -.1163139    .0450753
         17  |   .0009137    .035101     0.03   0.979    -.0690266    .0708539
         18  |  -.0188552   .0110112    -1.71   0.091    -.0407954    .0030851
         19  |  -.0095988   .0012796    -7.50   0.000    -.0121484   -.0070491
         20  |  -.0096914   .0019734    -4.91   0.000    -.0136234   -.0057594
         21  |   .0014955     .01074     0.14   0.890    -.0199044    .0228953
         22  |   .0111441   .0159296     0.70   0.486    -.0205963    .0428846
         23  |   -.014005   .0106404    -1.32   0.192    -.0352064    .0071964
         24  |    .008898   .0132612     0.67   0.504    -.0175256    .0353216
         25  |   .0038302   .0134782     0.28   0.777    -.0230257    .0306862
         26  |  -.0015926   .0071598    -0.22   0.825    -.0158588    .0126737
         27  |   .0043624   .0077229     0.56   0.574    -.0110258    .0197505
         28  |   .0048312   .0235976     0.20   0.838     -.042188    .0518504
         29  |  -.0057364    .010769    -0.53   0.596     -.027194    .0157213
         30  |  -.0109822   .0105974    -1.04   0.303     -.032098    .0101336
         31  |  -.0181884   .0053787    -3.38   0.001    -.0289056   -.0074712
         32  |  -.0092222   .0045816    -2.01   0.048    -.0183513   -.0000931
         33  |  -.0201492   .0021978    -9.17   0.000    -.0245284     -.01577
         34  |  -.0046139   .0420335    -0.11   0.913    -.0883675    .0791398
         35  |  -.0076299   .0164508    -0.46   0.644    -.0404089     .025149
         36  |  -.0282909   .0052598    -5.38   0.000    -.0387714   -.0178104
         37  |  -.0001749   .0133558    -0.01   0.990    -.0267869    .0264372
         38  |   .0004075   .0023875     0.17   0.865    -.0043498    .0051647
         39  |   .0067661   .0187154     0.36   0.719    -.0305251    .0440574
         40  |  -.0076597   .0151561    -0.51   0.615    -.0378589    .0225395
         41  |   .0187681   .0018922     9.92   0.000     .0149978    .0225384
         42  |   -.011803   .0257454    -0.46   0.648    -.0631018    .0394958
         43  |  -.0142203   .0073355    -1.94   0.056    -.0288365     .000396
         44  |  -.0125906   .0163334    -0.77   0.443    -.0451356    .0199543
         46  |  -.0712484   .0097071    -7.34   0.000    -.0905901   -.0519067
         47  |  -.0070616   .0073772    -0.96   0.342     -.021761    .0076378
         49  |   .0009801   .0186664     0.05   0.958    -.0362135    .0381736
         50  |   .0001545   .0039408     0.04   0.969    -.0076977    .0080066
         51  |   .0024224   .0230628     0.11   0.917    -.0435312     .048376
         52  |   .0145139   .0170421     0.85   0.397    -.0194432     .048471
         53  |   .0203788   .0049337     4.13   0.000     .0105483    .0302094
         54  |   .0161835   .0054777     2.95   0.004      .005269     .027098
         55  |    .010416   .0095354     1.09   0.278    -.0085838    .0294158
         56  |  -.0051883    .021964    -0.24   0.814    -.0489526     .038576
         58  |   .0068638   .0312514     0.22   0.827    -.0554061    .0691336
         59  |   .0141763   .0258473     0.55   0.585    -.0373256    .0656782
         61  |    .019198   .0114385     1.68   0.097    -.0035937    .0419898
         62  |   .0166213   .0242883     0.68   0.496    -.0317741    .0650167
         63  |   .0098921    .017564     0.56   0.575    -.0251049    .0448891
         64  |   .0010743    .008207     0.13   0.896    -.0152785    .0174272
         65  |  -.0151022   .0035736    -4.23   0.000    -.0222227   -.0079816
         66  |   .0026887   .0038869     0.69   0.491    -.0050561    .0104334
         69  |   .0094335   .0079306     1.19   0.238    -.0063685    .0252355
         70  |   .0028461   .0357405     0.08   0.937    -.0683685    .0740607
         71  |   .0211003    .012137     1.74   0.086    -.0030832    .0452837
         72  |  -.0297153   .0168434    -1.76   0.082    -.0632765    .0038458
         75  |  -.0255101   .0155855    -1.64   0.106    -.0565647    .0055446
         77  |    .019841   .0034029     5.83   0.000     .0130605    .0266215
         79  |  -.1210495   .0170111    -7.12   0.000    -.1549449   -.0871542
         82  |  -.0178928   .0115973    -1.54   0.127    -.0410008    .0052153
         83  |  -.0065838   .0102576    -0.64   0.523    -.0270226    .0138549
         84  |    .000849    .003176     0.27   0.790    -.0054793    .0071773
         85  |  -.0478809   .0192617    -2.49   0.015    -.0862607   -.0095012
         87  |   -.138806   .0234561    -5.92   0.000    -.1855433   -.0920687
         88  |  -.0281804   .0046754    -6.03   0.000    -.0374963   -.0188645
         89  |  -.0054407   .0021738    -2.50   0.015    -.0097722   -.0011093
             |
       _cons |   .9748028   .1272562     7.66   0.000     .7212393    1.228366
------------------------------------------------------------------------------

. reg marrmu sr10u lnpopfu i.yob i.regno [aweight=popmu], cluster(regno);
(sum of wgt is   1.3419e+07)

Linear regression                               Number of obs     =      2,025
                                                F(27, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9974
                                                Root MSE          =     .01856

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrmu |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10u |    .076295   .0332015     2.30   0.024     .0101396    .1424505
     lnpopfu |   .0212387   .0110704     1.92   0.059    -.0008195    .0432969
             |
         yob |
       1916  |   .0025357   .0025258     1.00   0.319    -.0024971    .0075686
       1917  |   .0028233   .0037599     0.75   0.455    -.0046685    .0103151
       1918  |   .0079247   .0060878     1.30   0.197    -.0042055    .0200549
       1919  |     -.0025   .0013296    -1.88   0.064    -.0051493    .0001493
       1920  |   .0019376   .0043241     0.45   0.655    -.0066783    .0105535
       1921  |  -.0054567   .0021482    -2.54   0.013    -.0097371   -.0011763
       1922  |  -.0074947   .0025148    -2.98   0.004    -.0125056   -.0024838
       1923  |  -.0161774   .0012899   -12.54   0.000    -.0187476   -.0136073
       1924  |  -.0288727   .0024627   -11.72   0.000    -.0337798   -.0239657
       1925  |  -.0370348    .003161   -11.72   0.000    -.0433332   -.0307365
       1926  |  -.0474706   .0042879   -11.07   0.000    -.0560144   -.0389267
       1927  |  -.0598803    .005899   -10.15   0.000    -.0716343   -.0481264
       1928  |  -.0697572   .0056801   -12.28   0.000     -.081075   -.0584394
       1929  |  -.0956374   .0077255   -12.38   0.000    -.1110308   -.0802439
       1930  |  -.1198027    .007698   -15.56   0.000    -.1351413   -.1044642
       1931  |  -.1564739   .0085785   -18.24   0.000     -.173567   -.1393807
       1932  |  -.1982869   .0094445   -20.99   0.000    -.2171055   -.1794683
       1933  |  -.2516399   .0102979   -24.44   0.000     -.272159   -.2311209
       1934  |  -.3301841    .011155   -29.60   0.000    -.3524108   -.3079573
       1935  |  -.4480576   .0117572   -38.11   0.000    -.4714844   -.4246308
       1936  |  -.5978672   .0128226   -46.63   0.000    -.6234167   -.5723177
       1937  |  -.7595407   .0129457   -58.67   0.000    -.7853355   -.7337459
       1938  |  -.8586944   .0129106   -66.51   0.000    -.8844193   -.8329695
       1939  |  -.9111098   .0121253   -75.14   0.000    -.9352699   -.8869497
       1940  |  -.9498496   .0112897   -84.13   0.000    -.9723448   -.9273544
       1941  |  -.9774031   .0106421   -91.84   0.000    -.9986081   -.9561982
             |
       regno |
          2  |  -.1085059   .0149651    -7.25   0.000    -.1383245   -.0786874
          3  |  -.0529455   .0063224    -8.37   0.000    -.0655432   -.0403477
          5  |  -.0207251   .0012713   -16.30   0.000    -.0232582    -.018192
          6  |  -.0320355   .0042717    -7.50   0.000     -.040547   -.0235239
          7  |  -.0871342   .0230722    -3.78   0.000    -.1331065    -.041162
          8  |  -.0059885   .0046488    -1.29   0.202    -.0152515    .0032746
          9  |   .0090083   .0047228     1.91   0.060    -.0004021    .0184186
         10  |   .0145838   .0056836     2.57   0.012      .003259    .0259085
         11  |   -.003205   .0022444    -1.43   0.157    -.0076769     .001267
         12  |  -.0102127   .0071416    -1.43   0.157    -.0244426    .0040173
         13  |  -.0058952   .0082905    -0.71   0.479    -.0224143     .010624
         14  |   .0035315    .002646     1.33   0.186    -.0017408    .0088038
         15  |   .0132524   .0016727     7.92   0.000     .0099195    .0165854
         16  |  -.0933409   .0271736    -3.43   0.001    -.1474855   -.0391964
         17  |     -.0483   .0237407    -2.03   0.045    -.0956044   -.0009956
         18  |  -.0094557   .0074359    -1.27   0.207    -.0242721    .0053607
         19  |  -.0159683   .0016986    -9.40   0.000    -.0193528   -.0125838
         20  |  -.0071365   .0017251    -4.14   0.000    -.0105738   -.0036993
         21  |  -.0129028   .0069825    -1.85   0.069    -.0268158    .0010101
         22  |   -.014179   .0113238    -1.25   0.214    -.0367422    .0083842
         23  |   -.032267   .0070515    -4.58   0.000    -.0463173   -.0182166
         24  |   .0284825   .0093298     3.05   0.003     .0098925    .0470724
         25  |    .022091   .0093255     2.37   0.020     .0035095    .0406725
         26  |   .0064724   .0050152     1.29   0.201    -.0035205    .0164654
         27  |  -.0103525   .0056431    -1.83   0.071    -.0215967    .0008917
         28  |  -.0325905    .016246    -2.01   0.049    -.0649614   -.0002196
         29  |   .0014212   .0074212     0.19   0.849    -.0133659    .0162082
         30  |  -.0296243   .0073387    -4.04   0.000    -.0442469   -.0150016
         31  |  -.0145443   .0037499    -3.88   0.000    -.0220162   -.0070725
         32  |  -.0099994   .0035211    -2.84   0.006    -.0170153   -.0029835
         33  |   -.021618   .0019713   -10.97   0.000    -.0255458   -.0176901
         34  |   .0486177   .0281655     1.73   0.088    -.0075033    .1047386
         35  |  -.0351779   .0115371    -3.05   0.003    -.0581662   -.0121897
         36  |  -.0295709    .004167    -7.10   0.000    -.0378738    -.021268
         37  |  -.0229379    .009704    -2.36   0.021    -.0422734   -.0036023
         38  |  -.0059386   .0019408    -3.06   0.003    -.0098057   -.0020715
         39  |   -.023902   .0134871    -1.77   0.080    -.0507755    .0029716
         40  |  -.0342015    .010892    -3.14   0.002    -.0559043   -.0124987
         41  |   .0201785   .0014557    13.86   0.000      .017278    .0230791
         42  |   .0251816   .0178001     1.41   0.161    -.0102858     .060649
         43  |  -.0111952    .005249    -2.13   0.036    -.0216542   -.0007363
         44  |   .0073431   .0111688     0.66   0.513    -.0149112    .0295973
         46  |  -.0630213   .0067684    -9.31   0.000    -.0765077   -.0495349
         47  |   .0023104   .0050729     0.46   0.650    -.0077975    .0124183
         49  |  -.0269754   .0128352    -2.10   0.039    -.0525501   -.0014007
         50  |   -.008832   .0032594    -2.71   0.008    -.0153265   -.0023375
         51  |  -.0317859   .0164845    -1.93   0.058    -.0646319    .0010601
         52  |  -.0133765   .0125899    -1.06   0.291    -.0384626    .0117095
         53  |    .015012   .0035249     4.26   0.000     .0079885    .0220354
         54  |   .0214962   .0036636     5.87   0.000     .0141962    .0287961
         55  |   -.006719   .0071873    -0.93   0.353      -.02104     .007602
         56  |  -.0427554   .0159353    -2.68   0.009    -.0745072   -.0110035
         58  |  -.0413226   .0220125    -1.88   0.064    -.0851834    .0025382
         59  |  -.0272559   .0185807    -1.47   0.147    -.0642788    .0097669
         61  |  -.0005637   .0087451    -0.06   0.949    -.0179887    .0168613
         62  |  -.0246481    .018085    -1.36   0.177    -.0606833     .011387
         63  |  -.0186887   .0125273    -1.49   0.140    -.0436498    .0062725
         64  |  -.0151476    .006611    -2.29   0.025    -.0283202   -.0019749
         65  |  -.0164754    .003114    -5.29   0.000    -.0226801   -.0102707
         66  |    .008567   .0026642     3.22   0.002     .0032585    .0138755
         69  |   .0203828   .0051139     3.99   0.000     .0101931    .0305724
         70  |   .0521723   .0238445     2.19   0.032      .004661    .0996836
         71  |   .0367607   .0081723     4.50   0.000     .0204771    .0530443
         72  |  -.0677096   .0143924    -4.70   0.000     -.096387   -.0390321
         75  |  -.0607874    .013716    -4.43   0.000    -.0881171   -.0334577
         77  |   .0148433   .0029704     5.00   0.000     .0089246     .020762
         79  |  -.1394417   .0151104    -9.23   0.000    -.1695499   -.1093335
         82  |  -.0437719   .0090402    -4.84   0.000    -.0617848   -.0257589
         83  |  -.0254665    .007863    -3.24   0.002    -.0411339    -.009799
         84  |   .0003889   .0026588     0.15   0.884    -.0049088    .0056866
         85  |  -.0303373   .0127702    -2.38   0.020    -.0557825   -.0048921
         87  |   -.169347   .0211312    -8.01   0.000    -.2114519   -.1272421
         88  |  -.0328493   .0057202    -5.74   0.000    -.0442471   -.0214515
         89  |  -.0004397   .0031125    -0.14   0.888    -.0066414    .0057621
             |
       _cons |    .752569   .0934932     8.05   0.000     .5662798    .9388582
------------------------------------------------------------------------------

. reg marrmu sr10u lnpopfu i.yob i.regno i.regno#c.time, cluster(regno);
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      2,025
                                                F(26, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9971
                                                Root MSE          =      .0183

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrmu |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10u |   .1546647   .0478743     3.23   0.002      .059273    .2500564
     lnpopfu |   .0054257   .0133753     0.41   0.686    -.0212252    .0320766
             |
         yob |
       1916  |  -.0007057   .0026936    -0.26   0.794    -.0060727    .0046613
       1917  |   -.000594   .0042202    -0.14   0.888     -.009003     .007815
       1918  |   .0017102   .0069964     0.24   0.808    -.0122305    .0156509
       1919  |   .0002136   .0018687     0.11   0.909    -.0035099    .0039372
       1920  |   6.20e-06   .0050665     0.00   0.999     -.010089    .0101014
       1921  |  -.0011448   .0033423    -0.34   0.733    -.0078044    .0055148
       1922  |  -.0021137   .0043092    -0.49   0.625    -.0106999    .0064726
       1923  |  -.0069979   .0034432    -2.03   0.046    -.0138587   -.0001371
       1924  |  -.0149569   .0036679    -4.08   0.000    -.0222654   -.0076484
       1925  |  -.0238352   .0038471    -6.20   0.000    -.0315007   -.0161697
       1926  |  -.0338689    .004348    -7.79   0.000    -.0425326   -.0252053
       1927  |  -.0448245   .0059603    -7.52   0.000    -.0567007   -.0329483
       1928  |  -.0585418   .0051127   -11.45   0.000    -.0687291   -.0483545
       1929  |  -.0820053   .0082242    -9.97   0.000    -.0983923   -.0656183
       1930  |   -.108225   .0068722   -15.75   0.000    -.1219182   -.0945317
       1931  |  -.1451021   .0081085   -17.90   0.000    -.1612585   -.1289456
       1932  |   -.190368   .0074647   -25.50   0.000    -.2052417   -.1754944
       1933  |  -.2427779   .0083492   -29.08   0.000     -.259414   -.2261417
       1934  |  -.3258791   .0083819   -38.88   0.000    -.3425804   -.3091779
       1935  |  -.4450908   .0089081   -49.96   0.000    -.4628406    -.427341
       1936  |    -.59265   .0112616   -52.63   0.000    -.6150891   -.5702108
       1937  |  -.7502724   .0129429   -57.97   0.000    -.7760618   -.7244831
       1938  |  -.8465478   .0141283   -59.92   0.000    -.8746989   -.8183966
       1939  |  -.8989464   .0143711   -62.55   0.000    -.9275815   -.8703113
       1940  |  -.9390615   .0130995   -71.69   0.000    -.9651629   -.9129602
       1941  |  -.9657486   .0118276   -81.65   0.000    -.9893156   -.9421815
             |
       regno |
          2  |  -.1220176   .0238627    -5.11   0.000     -.169565   -.0744701
          3  |  -.0079286   .0066164    -1.20   0.235     -.021112    .0052548
          5  |   .0204973   .0017357    11.81   0.000     .0170389    .0239558
          6  |  -.0067963   .0034822    -1.95   0.055    -.0137348    .0001422
          7  |  -.0192386   .0323688    -0.59   0.554    -.0837349    .0452577
          8  |   .0006142   .0095102     0.06   0.949    -.0183353    .0195637
          9  |   .0110483   .0020664     5.35   0.000     .0069309    .0151657
         10  |   .0035552   .0032812     1.08   0.282    -.0029828    .0100931
         11  |    .007997   .0067846     1.18   0.242    -.0055217    .0215156
         12  |  -.0010257   .0102866    -0.10   0.921    -.0215222    .0194709
         13  |   .0161251   .0105958     1.52   0.132    -.0049876    .0372377
         14  |   .0045502   .0023684     1.92   0.059    -.0001689    .0092693
         15  |   .0140673   .0011852    11.87   0.000     .0117058    .0164287
         16  |  -.0425903   .0381994    -1.11   0.268    -.1187043    .0335237
         17  |  -.0088111   .0325777    -0.27   0.788    -.0737235    .0561013
         18  |  -.0058386   .0065536    -0.89   0.376    -.0188969    .0072198
         19  |  -.0008151   .0043657    -0.19   0.852    -.0095139    .0078837
         20  |  -.0066712   .0027183    -2.45   0.016    -.0120874   -.0012549
         21  |   .0051796   .0107112     0.48   0.630    -.0161629    .0265221
         22  |  -.0144252   .0191638    -0.75   0.454      -.05261    .0237596
         23  |  -.0023449   .0113721    -0.21   0.837    -.0250043    .0203145
         24  |   .0250574   .0106173     2.36   0.021     .0039018    .0462129
         25  |   .0049103   .0086583     0.57   0.572    -.0123417    .0221622
         26  |   .0124683   .0047755     2.61   0.011     .0029528    .0219837
         27  |   .0098156   .0080441     1.22   0.226    -.0062126    .0258437
         28  |   -.003896   .0235383    -0.17   0.869    -.0507971    .0430052
         29  |   .0008679   .0061489     0.14   0.888     -.011384    .0131198
         30  |  -.0081253   .0140381    -0.58   0.564    -.0360968    .0198463
         31  |  -.0052476   .0039425    -1.33   0.187    -.0131032     .002608
         32  |  -.0051354   .0033353    -1.54   0.128    -.0117812    .0015103
         33  |  -.0110328   .0043904    -2.51   0.014    -.0197808   -.0022849
         34  |   .0117673   .0333887     0.35   0.726     -.054761    .0782957
         35  |   -.003816   .0157567    -0.24   0.809     -.035212      .02758
         36  |  -.0069709   .0018622    -3.74   0.000    -.0106815   -.0032603
         37  |  -.0192332   .0155334    -1.24   0.220    -.0501841    .0117177
         38  |  -.0044718   .0053978    -0.83   0.410     -.015227    .0062835
         39  |  -.0189567   .0213574    -0.89   0.378    -.0615124    .0235989
         40  |  -.0169615   .0165935    -1.02   0.310    -.0500248    .0161017
         41  |   .0090456   .0036312     2.49   0.015     .0018102     .016281
         42  |   -.010476   .0160709    -0.65   0.517    -.0424981     .021546
         43  |  -.0150391   .0043555    -3.45   0.001    -.0237176   -.0063606
         44  |   -.008731   .0094444    -0.92   0.358    -.0275494    .0100874
         46  |  -.0160853    .006055    -2.66   0.010    -.0281501   -.0040204
         47  |    -.01148   .0041334    -2.78   0.007     -.019716    -.003244
         49  |  -.0318851   .0231614    -1.38   0.173    -.0780351     .014265
         50  |  -.0249883   .0118851    -2.10   0.039    -.0486698   -.0013067
         51  |  -.0354234   .0226415    -1.56   0.122    -.0805376    .0096908
         52  |  -.0032101   .0162397    -0.20   0.844    -.0355685    .0291483
         53  |   .0015773   .0062933     0.25   0.803    -.0109624     .014117
         54  |  -.0034717   .0037679    -0.92   0.360    -.0109793     .004036
         55  |  -.0025684   .0104259    -0.25   0.806    -.0233425    .0182057
         56  |  -.0292221   .0213983    -1.37   0.176    -.0718592     .013415
         58  |  -.0234358   .0289038    -0.81   0.420    -.0810278    .0341563
         59  |  -.0189828   .0249454    -0.76   0.449    -.0686876     .030722
         61  |  -.0116889   .0121797    -0.96   0.340    -.0359575    .0125797
         62  |   -.022221   .0238841    -0.93   0.355    -.0698111     .025369
         63  |  -.0106244   .0173273    -0.61   0.542    -.0451498     .023901
         64  |  -.0196325   .0105316    -1.86   0.066    -.0406172    .0013523
         65  |  -.0278442   .0033859    -8.22   0.000    -.0345908   -.0210976
         66  |  -.0191529    .003246    -5.90   0.000    -.0256207   -.0126851
         69  |  -.0244869   .0076783    -3.19   0.002    -.0397863   -.0091876
         70  |  -.0412785   .0249793    -1.65   0.103    -.0910508    .0084939
         71  |  -.0174973   .0075396    -2.32   0.023    -.0325203   -.0024744
         72  |  -.0601725   .0200266    -3.00   0.004    -.1000763   -.0202686
         75  |  -.0764194   .0218137    -3.50   0.001    -.1198842   -.0329547
         77  |  -.0195614   .0093159    -2.10   0.039    -.0381237   -.0009991
         79  |  -.2216045   .0246383    -8.99   0.000    -.2706974   -.1725116
         82  |  -.0378799   .0181386    -2.09   0.040     -.074022   -.0017379
         83  |  -.0554667   .0201737    -2.75   0.007    -.0956637   -.0152697
         84  |  -.0522501   .0132663    -3.94   0.000    -.0786838   -.0258165
         85  |  -.1049085   .0155852    -6.73   0.000    -.1359627   -.0738542
         87  |   -.311878    .051793    -6.02   0.000    -.4150778   -.2086781
         88  |  -.1161744   .0179259    -6.48   0.000    -.1518926   -.0804562
         89  |  -.0140477   .0032608    -4.31   0.000     -.020545   -.0075504
             |
regno#c.time |
          1  |  -.0012164   .0004085    -2.98   0.004    -.0020304   -.0004023
          2  |  -.0023192   .0003236    -7.17   0.000     -.002964   -.0016743
          3  |  -.0041006   .0007582    -5.41   0.000    -.0056113   -.0025899
          5  |  -.0041316   .0005352    -7.72   0.000    -.0051979   -.0030653
          6  |  -.0028477   .0005962    -4.78   0.000    -.0040356   -.0016597
          7  |   -.003374   .0003386    -9.97   0.000    -.0040487   -.0026994
          8  |  -.0012662   .0002381    -5.32   0.000    -.0017407   -.0007917
          9  |  -.0019594   .0003602    -5.44   0.000    -.0026772   -.0012417
         10  |  -.0008149   .0002157    -3.78   0.000    -.0012447   -.0003851
         11  |  -.0018424   .0001494   -12.33   0.000      -.00214   -.0015448
         12  |   -.001144   .0002236    -5.12   0.000    -.0015895   -.0006986
         13  |  -.0015849   .0003019    -5.25   0.000    -.0021864   -.0009833
         14  |  -.0017844   .0003131    -5.70   0.000    -.0024082   -.0011606
         15  |   -.001417   .0003547    -3.99   0.000    -.0021238   -.0007102
         16  |  -.0020046   .0003052    -6.57   0.000    -.0026128   -.0013964
         17  |  -.0015925   .0001885    -8.45   0.000    -.0019681   -.0012168
         18  |  -.0024471   .0002322   -10.54   0.000    -.0029097   -.0019844
         19  |  -.0024703   .0003087    -8.00   0.000    -.0030855   -.0018551
         20  |  -.0014549   .0002686    -5.42   0.000    -.0019901   -.0009198
         21  |  -.0016745   .0003089    -5.42   0.000      -.00229   -.0010589
         22  |  -.0005146    .000214    -2.40   0.019    -.0009409   -.0000882
         23  |  -.0026369   .0003805    -6.93   0.000    -.0033951   -.0018787
         24  |  -.0017979   .0002846    -6.32   0.000    -.0023649   -.0012309
         25  |   -.001092    .000174    -6.27   0.000    -.0014388   -.0007453
         26  |  -.0022026   .0001332   -16.54   0.000     -.002468   -.0019372
         27  |  -.0023698   .0004847    -4.89   0.000    -.0033356   -.0014039
         28  |  -.0018916   .0003019    -6.27   0.000    -.0024931   -.0012901
         29  |  -.0024612   .0002563    -9.60   0.000     -.002972   -.0019505
         30  |  -.0021677   .0001426   -15.20   0.000    -.0024518   -.0018835
         31  |  -.0023808   .0001596   -14.92   0.000    -.0026989   -.0020628
         32  |  -.0022001   .0003643    -6.04   0.000    -.0029261   -.0014742
         33  |  -.0023584   .0002825    -8.35   0.000    -.0029212   -.0017955
         34  |  -.0017561   .0004345    -4.04   0.000    -.0026218   -.0008904
         35  |  -.0023928   .0002433    -9.84   0.000    -.0028776   -.0019081
         36  |  -.0034806   .0004515    -7.71   0.000    -.0043802   -.0025809
         37  |  -.0008365   .0001783    -4.69   0.000    -.0011918   -.0004812
         38  |  -.0012964   .0002552    -5.08   0.000     -.001805   -.0007879
         39  |  -.0006729    .000119    -5.65   0.000    -.0009101   -.0004358
         40  |  -.0016407   .0002828    -5.80   0.000    -.0022042   -.0010772
         41  |  -.0007798   .0002292    -3.40   0.001    -.0012365   -.0003231
         42  |  -.0004602    .000238    -1.93   0.057    -.0009344     .000014
         43  |   -.001877    .000471    -3.99   0.000    -.0028155   -.0009385
         44  |  -.0014678   .0001763    -8.32   0.000    -.0018192   -.0011165
         46  |  -.0051279   .0002255   -22.74   0.000    -.0055771   -.0046787
         47  |  -.0008918   .0001643    -5.43   0.000    -.0012191   -.0005644
         49  |   .0003086   .0002716     1.14   0.259    -.0002325    .0008497
         50  |  -.0000557   .0002558    -0.22   0.828    -.0005653     .000454
         51  |   .0001184   .0003368     0.35   0.726    -.0005527    .0007895
         52  |  -.0011289   .0003168    -3.56   0.001    -.0017602   -.0004976
         53  |  -.0001775   .0002527    -0.70   0.485     -.000681     .000326
         54  |  -.0001552   .0003773    -0.41   0.682    -.0009069    .0005965
         55  |  -.0011253   .0003456    -3.26   0.002    -.0018139   -.0004367
         56  |  -.0011176   .0003946    -2.83   0.006    -.0019038   -.0003313
         58  |  -.0007397   .0003404    -2.17   0.033    -.0014179   -.0000615
         59  |  -.0004811   .0003058    -1.57   0.120    -.0010905    .0001283
         61  |  -.0000193   .0003766    -0.05   0.959    -.0007698    .0007311
         62  |  -.0004949   .0005087    -0.97   0.334    -.0015085    .0005188
         63  |  -.0008947    .000318    -2.81   0.006    -.0015283    -.000261
         64  |  -.0007621   .0002879    -2.65   0.010    -.0013357   -.0001885
         65  |  -.0010163   .0004691    -2.17   0.033     -.001951   -.0000817
         66  |   .0001794   .0002539     0.71   0.482    -.0003265    .0006854
         69  |   .0010285   .0000296    34.78   0.000     .0009696    .0010875
         70  |   .0020642   .0000149   138.33   0.000     .0020344    .0020939
         71  |    .001219   .0002809     4.34   0.000     .0006593    .0017786
         72  |  -.0015901   .0004764    -3.34   0.001    -.0025394   -.0006407
         75  |  -.0002147   .0003141    -0.68   0.496    -.0008405    .0004111
         77  |   .0009551   .0001093     8.74   0.000     .0007373     .001173
         79  |   .0023825    .000165    14.44   0.000     .0020537    .0027113
         82  |  -.0013816   .0001147   -12.04   0.000    -.0016101    -.001153
         83  |   .0009781   .0002455     3.98   0.000     .0004889    .0014672
         84  |   .0018343   .0002821     6.50   0.000     .0012723    .0023964
         85  |   .0015894   .0001756     9.05   0.000     .0012395    .0019394
         87  |   .0056387   .0015724     3.59   0.001     .0025056    .0087718
         88  |   .0034256   .0002108    16.25   0.000     .0030056    .0038457
         89  |          0  (omitted)
             |
       _cons |   .8341723   .1236396     6.75   0.000      .587815     1.08053
------------------------------------------------------------------------------

. reg marrmu sr10u lnpopfu i.yob i.regno i.regno#c.time [aweight=popmu], cluster(regno);
(sum of wgt is   1.3419e+07)
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      2,025
                                                F(26, 74)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9979
                                                Root MSE          =     .01701

                                 (Std. Err. adjusted for 75 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrmu |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10u |    .166993   .0510766     3.27   0.002     .0652207    .2687653
     lnpopfu |    .014371   .0120415     1.19   0.237    -.0096222    .0383642
             |
         yob |
       1916  |   .0010795    .002474     0.44   0.664    -.0038501     .006009
       1917  |   .0010248   .0040497     0.25   0.801    -.0070444     .009094
       1918  |   .0050832   .0065726     0.77   0.442     -.008013    .0181794
       1919  |   -.001471   .0017724    -0.83   0.409    -.0050026    .0020606
       1920  |   .0014354   .0050159     0.29   0.776    -.0085591    .0114299
       1921  |  -.0037662   .0030169    -1.25   0.216    -.0097775    .0022451
       1922  |  -.0052129   .0037203    -1.40   0.165    -.0126257    .0021999
       1923  |  -.0119318   .0028261    -4.22   0.000    -.0175629   -.0063007
       1924  |  -.0236539   .0029985    -7.89   0.000    -.0296285   -.0176792
       1925  |   -.032781   .0031397   -10.44   0.000    -.0390369    -.026525
       1926  |  -.0454565   .0043614   -10.42   0.000    -.0541468   -.0367662
       1927  |  -.0590957   .0063593    -9.29   0.000    -.0717668   -.0464246
       1928  |  -.0715015   .0063344   -11.29   0.000    -.0841231   -.0588798
       1929  |  -.0975326   .0085421   -11.42   0.000    -.1145531    -.080512
       1930  |  -.1245243   .0085534   -14.56   0.000    -.1415673   -.1074813
       1931  |  -.1618394    .009433   -17.16   0.000     -.180635   -.1430437
       1932  |  -.2060627   .0103094   -19.99   0.000    -.2266045   -.1855209
       1933  |   -.260447   .0112272   -23.20   0.000    -.2828176   -.2380763
       1934  |  -.3419038   .0124018   -27.57   0.000    -.3666148   -.3171927
       1935  |  -.4613987   .0131594   -35.06   0.000    -.4876194    -.435178
       1936  |  -.6115527   .0142063   -43.05   0.000    -.6398593    -.583246
       1937  |  -.7729991   .0145833   -53.01   0.000    -.8020571   -.7439412
       1938  |  -.8714858    .014618   -59.62   0.000    -.9006128   -.8423588
       1939  |  -.9231285   .0138966   -66.43   0.000     -.950818    -.895439
       1940  |  -.9623147   .0130719   -73.62   0.000    -.9883609   -.9362684
       1941  |  -.9896822   .0122082   -81.07   0.000    -1.014008   -.9653569
             |
       regno |
          2  |  -.1436199    .022192    -6.47   0.000    -.1878383   -.0994014
          3  |  -.0234359   .0058684    -3.99   0.000    -.0351289   -.0117429
          5  |   .0190012   .0013762    13.81   0.000     .0162591    .0217434
          6  |  -.0103606   .0041619    -2.49   0.015    -.0186534   -.0020678
          7  |  -.0451276   .0286498    -1.58   0.119    -.1022135    .0119583
          8  |  -.0031375   .0086903    -0.36   0.719    -.0204533    .0141782
          9  |   .0151024   .0021113     7.15   0.000     .0108956    .0193093
         10  |   .0058466   .0044151     1.32   0.190    -.0029506    .0146438
         11  |    .008694   .0062708     1.39   0.170    -.0038008    .0211889
         12  |  -.0088883   .0099008    -0.90   0.372    -.0286161    .0108394
         13  |    .006444   .0095691     0.67   0.503    -.0126229    .0255109
         14  |   .0089367   .0033462     2.67   0.009     .0022692    .0156042
         15  |   .0154854   .0027516     5.63   0.000     .0100028     .020968
         16  |  -.0738406   .0337475    -2.19   0.032    -.1410839   -.0065972
         17  |  -.0287795   .0291795    -0.99   0.327    -.0869209    .0293619
         18  |  -.0026052   .0075716    -0.34   0.732    -.0176918    .0124815
         19  |   -.001425   .0046577    -0.31   0.761    -.0107058    .0078558
         20  |  -.0064635   .0029406    -2.20   0.031    -.0123228   -.0006041
         21  |  -.0017102     .00978    -0.17   0.862    -.0211972    .0177769
         22  |  -.0242843   .0172217    -1.41   0.163    -.0585993    .0100307
         23  |  -.0158236   .0100339    -1.58   0.119    -.0358166    .0041693
         24  |   .0358944   .0098138     3.66   0.000     .0163399    .0554489
         25  |   .0129739   .0094744     1.37   0.175    -.0059044    .0318521
         26  |   .0173589   .0065537     2.65   0.010     .0043003    .0304174
         27  |   .0057007   .0076353     0.75   0.458    -.0095129    .0209143
         28  |   -.017158   .0207613    -0.83   0.411    -.0585259    .0242098
         29  |   .0041051   .0080115     0.51   0.610    -.0118581    .0200682
         30  |  -.0184984   .0124465    -1.49   0.141    -.0432986    .0063018
         31  |  -.0076714   .0059142    -1.30   0.199    -.0194556    .0041128
         32  |  -.0065083   .0047727    -1.36   0.177    -.0160182    .0030016
         33  |  -.0173986   .0045853    -3.79   0.000     -.026535   -.0082622
         34  |   .0390433   .0307693     1.27   0.208    -.0222659    .1003525
         35  |  -.0130219   .0144805    -0.90   0.371    -.0418749    .0158311
         36  |  -.0102539    .002521    -4.07   0.000    -.0152772   -.0052306
         37  |  -.0303707   .0142346    -2.13   0.036    -.0587337   -.0020077
         38  |  -.0081697   .0056245    -1.45   0.151    -.0193768    .0030374
         39  |  -.0301635   .0193834    -1.56   0.124    -.0687858    .0084588
         40  |  -.0310194   .0144428    -2.15   0.035    -.0597974   -.0022415
         41  |   .0101096   .0051189     1.97   0.052    -.0000901    .0203092
         42  |    -.00046   .0162797    -0.03   0.978     -.032898     .031978
         43  |  -.0137173   .0057123    -2.40   0.019    -.0250993   -.0023353
         44  |  -.0022401   .0107259    -0.21   0.835    -.0236119    .0191318
         46  |  -.0330712   .0066942    -4.94   0.000    -.0464096   -.0197327
         47  |  -.0112634   .0054812    -2.05   0.043    -.0221848    -.000342
         49  |  -.0467029   .0198049    -2.36   0.021     -.086165   -.0072407
         50  |  -.0315636    .010609    -2.98   0.004    -.0527025   -.0104246
         51  |  -.0503162   .0196921    -2.56   0.013    -.0895536   -.0110788
         52  |  -.0096083   .0154638    -0.62   0.536    -.0404206     .021204
         53  |  -.0003537   .0064652    -0.05   0.957    -.0132359    .0125286
         54  |   .0005357   .0049914     0.11   0.915    -.0094099    .0104813
         55  |  -.0072628     .00918    -0.79   0.431    -.0255543    .0110288
         56  |  -.0482967   .0190678    -2.53   0.013    -.0862901   -.0103032
         58  |  -.0442756   .0257265    -1.72   0.089    -.0955368    .0069856
         59  |   -.031867   .0220383    -1.45   0.152    -.0757792    .0120452
         61  |  -.0146267   .0103573    -1.41   0.162    -.0352641    .0060108
         62  |  -.0349192   .0211847    -1.65   0.104    -.0771306    .0072921
         63  |  -.0203255   .0150053    -1.35   0.180    -.0502242    .0095733
         64  |  -.0272077   .0101188    -2.69   0.009    -.0473698   -.0070456
         65  |  -.0256808   .0046886    -5.48   0.000    -.0350231   -.0163385
         66  |  -.0202811   .0049317    -4.11   0.000    -.0301078   -.0104544
         69  |  -.0229412   .0100983    -2.27   0.026    -.0430625   -.0028198
         70  |  -.0216692   .0253622    -0.85   0.396    -.0722046    .0288661
         71  |  -.0101693   .0084874    -1.20   0.235    -.0270808    .0067422
         72  |  -.0880843   .0173796    -5.07   0.000    -.1227139   -.0534547
         75  |  -.1040618   .0198378    -5.25   0.000    -.1435894   -.0645342
         77  |  -.0159311   .0081484    -1.96   0.054    -.0321672    .0003049
         79  |  -.2485317   .0292368    -8.50   0.000    -.3067873   -.1902762
         82  |  -.0439871    .014465    -3.04   0.003    -.0728091    -.015165
         83  |  -.0636662   .0176396    -3.61   0.001    -.0988138   -.0285185
         84  |  -.0503016   .0133922    -3.76   0.000    -.0769861    -.023617
         85  |  -.1056875   .0168812    -6.26   0.000    -.1393241   -.0720509
         87  |  -.3175636    .056481    -5.62   0.000    -.4301044   -.2050227
         88  |  -.1195923   .0172464    -6.93   0.000    -.1539566    -.085228
         89  |  -.0031514   .0032474    -0.97   0.335    -.0096219    .0033191
             |
regno#c.time |
          1  |  -.0007248   .0003392    -2.14   0.036    -.0014007   -.0000489
          2  |  -.0010414   .0003927    -2.65   0.010    -.0018239   -.0002589
          3  |  -.0030104   .0007272    -4.14   0.000    -.0044594   -.0015615
          5  |  -.0034733    .000407    -8.53   0.000    -.0042843   -.0026623
          6  |  -.0023231   .0006662    -3.49   0.001    -.0036504   -.0009957
          7  |   -.002351   .0002156   -10.90   0.000    -.0027806   -.0019214
          8  |  -.0006446   .0000957    -6.74   0.000    -.0008352   -.0004539
          9  |  -.0013924   .0002396    -5.81   0.000    -.0018698    -.000915
         10  |  -.0000839   .0001768    -0.47   0.636    -.0004363    .0002684
         11  |  -.0014032   .0000462   -30.36   0.000    -.0014953   -.0013111
         12  |  -.0004896   .0001197    -4.09   0.000    -.0007282   -.0002511
         13  |  -.0008444   .0001306    -6.47   0.000    -.0011045   -.0005843
         14  |  -.0014106   .0002027    -6.96   0.000    -.0018146   -.0010067
         15  |  -.0009142   .0002033    -4.50   0.000    -.0013193   -.0005092
         16  |  -.0008312   .0001828    -4.55   0.000    -.0011955   -.0004669
         17  |  -.0009547   .0000322   -29.66   0.000    -.0010189   -.0008906
         18  |  -.0017514   .0001531   -11.44   0.000    -.0020565   -.0014464
         19  |  -.0019382   .0002138    -9.07   0.000    -.0023641   -.0015122
         20  |  -.0008559   .0001327    -6.45   0.000    -.0011202   -.0005916
         21  |  -.0010731   .0001502    -7.14   0.000    -.0013724   -.0007738
         22  |   .0000458    .000075     0.61   0.544    -.0001036    .0001951
         23  |  -.0016345   .0002285    -7.15   0.000    -.0020898   -.0011792
         24  |   -.001431   .0001757    -8.14   0.000    -.0017811   -.0010808
         25  |  -.0005946    .000085    -6.99   0.000     -.000764   -.0004252
         26  |  -.0016683   .0001196   -13.95   0.000    -.0019066   -.0014301
         27  |  -.0018579   .0003438    -5.40   0.000     -.002543   -.0011728
         28  |  -.0013667   .0001811    -7.55   0.000    -.0017275   -.0010058
         29  |  -.0017665   .0001429   -12.36   0.000    -.0020513   -.0014818
         30  |  -.0013122   .0000532   -24.65   0.000    -.0014183   -.0012061
         31  |  -.0014745   .0000664   -22.20   0.000    -.0016068   -.0013421
         32  |     -.0015   .0002595    -5.78   0.000     -.002017   -.0009829
         33  |  -.0013248   .0001451    -9.13   0.000    -.0016139   -.0010357
         34  |  -.0015902   .0004006    -3.97   0.000    -.0023883   -.0007921
         35  |  -.0018346   .0001585   -11.57   0.000    -.0021505   -.0015187
         36  |  -.0025753   .0003949    -6.52   0.000    -.0033622   -.0017884
         37  |  -.0001528   .0000949    -1.61   0.112     -.000342    .0000363
         38  |  -.0006887   .0001534    -4.49   0.000    -.0009943   -.0003831
         39  |   -.000151   .0000758    -1.99   0.050    -.0003021    1.51e-07
         40  |  -.0008177   .0001698    -4.81   0.000    -.0011561   -.0004793
         41  |  -.0002891    .000083    -3.48   0.001    -.0004545   -.0001238
         42  |   .0003143   .0000999     3.15   0.002     .0001153    .0005133
         43  |  -.0012774   .0003898    -3.28   0.002     -.002054   -.0005007
         44  |  -.0007701   .0000303   -25.41   0.000    -.0008305   -.0007097
         46  |  -.0028372   .0001829   -15.51   0.000    -.0032017   -.0024727
         47  |  -.0001266   .0000361    -3.51   0.001    -.0001985   -.0000546
         49  |   .0010422   .0001463     7.12   0.000     .0007507    .0013336
         50  |   .0006319   .0001035     6.11   0.000     .0004257    .0008381
         51  |   .0006815   .0002577     2.64   0.010      .000168     .001195
         52  |  -.0008174   .0002253    -3.63   0.001    -.0012663   -.0003684
         53  |   .0002968   .0001762     1.68   0.096    -.0000542    .0006479
         54  |    .000137   .0003065     0.45   0.656    -.0004738    .0007478
         55  |  -.0007118   .0002705    -2.63   0.010    -.0012508   -.0001728
         56  |  -.0003067   .0002806    -1.09   0.278    -.0008658    .0002524
         58  |  -.0000846   .0002275    -0.37   0.711    -.0005379    .0003687
         59  |  -.0001824   .0002312    -0.79   0.433     -.000643    .0002782
         61  |   .0000591   .0003312     0.18   0.859    -.0006007     .000719
         62  |  -.0002192   .0004545    -0.48   0.631    -.0011248    .0006865
         63  |  -.0004593   .0002459    -1.87   0.066    -.0009493    .0000307
         64  |  -.0001367   .0002213    -0.62   0.539    -.0005777    .0003043
         65  |   -.000679   .0004407    -1.54   0.128     -.001557    .0001991
         66  |   .0008487   .0001674     5.07   0.000     .0005151    .0011823
         69  |   .0016477   .0002483     6.63   0.000     .0011529    .0021425
         70  |   .0024987   .0001564    15.98   0.000      .002187    .0028103
         71  |   .0014779   .0001906     7.75   0.000     .0010981    .0018577
         72  |   -.000145    .000434    -0.33   0.739    -.0010098    .0007198
         75  |   .0012101    .000244     4.96   0.000      .000724    .0016962
         77  |   .0009909   .0001159     8.55   0.000       .00076    .0012218
         79  |   .0038655   .0003257    11.87   0.000     .0032165    .0045144
         82  |  -.0010314   .0001453    -7.10   0.000    -.0013209   -.0007418
         83  |   .0015534   .0002965     5.24   0.000     .0009625    .0021442
         84  |   .0021048   .0003327     6.33   0.000     .0014418    .0027679
         85  |   .0026224   .0001509    17.38   0.000     .0023217    .0029231
         87  |   .0059858   .0017769     3.37   0.001     .0024453    .0095263
         88  |   .0041155   .0002208    18.64   0.000     .0036755    .0045555
         89  |          0  (omitted)
             |
       _cons |   .7564219   .1079622     7.01   0.000     .5413024    .9715413
------------------------------------------------------------------------------

. *  Rural age 18-44;
. reg marrmr sr10r lnpopfr i.yob i.regno, cluster(regno);

Linear regression                               Number of obs     =      1,971
                                                F(27, 72)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9923
                                                Root MSE          =     .02869

                                 (Std. Err. adjusted for 73 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrmr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10r |   -.074785   .0319259    -2.34   0.022    -.1384281   -.0111419
     lnpopfr |  -.0174104   .0140576    -1.24   0.220    -.0454338     .010613
             |
         yob |
       1916  |  -.0036705   .0033728    -1.09   0.280    -.0103941    .0030532
       1917  |  -.0097157   .0057653    -1.69   0.096    -.0212086    .0017773
       1918  |  -.0116727   .0087552    -1.33   0.187     -.029126    .0057805
       1919  |   -.003366   .0016301    -2.06   0.043    -.0066155   -.0001165
       1920  |  -.0099651   .0063317    -1.57   0.120     -.022587    .0026568
       1921  |  -.0117005   .0049169    -2.38   0.020    -.0215022   -.0018989
       1922  |  -.0125681   .0061981    -2.03   0.046    -.0249238   -.0002124
       1923  |  -.0109644   .0032229    -3.40   0.001     -.017389   -.0045397
       1924  |   -.011437   .0024401    -4.69   0.000    -.0163012   -.0065728
       1925  |  -.0119054   .0031418    -3.79   0.000    -.0181685   -.0056423
       1926  |  -.0154178   .0040289    -3.83   0.000    -.0234493   -.0073863
       1927  |  -.0188804   .0054671    -3.45   0.001    -.0297788    -.007982
       1928  |  -.0260372   .0065858    -3.95   0.000    -.0391657   -.0129086
       1929  |  -.0320213   .0079736    -4.02   0.000    -.0479164   -.0161262
       1930  |  -.0522334   .0091147    -5.73   0.000    -.0704032   -.0340635
       1931  |  -.0780349   .0097582    -8.00   0.000    -.0974876   -.0585823
       1932  |  -.1162153   .0117261    -9.91   0.000    -.1395907   -.0928398
       1933  |  -.1545405   .0118541   -13.04   0.000    -.1781713   -.1309097
       1934  |  -.2269051   .0140566   -16.14   0.000    -.2549264   -.1988838
       1935  |  -.3352329   .0153364   -21.86   0.000    -.3658055   -.3046603
       1936  |  -.4786032   .0157166   -30.45   0.000    -.5099335   -.4472728
       1937  |  -.6475321   .0162895   -39.75   0.000    -.6800046   -.6150596
       1938  |  -.7580916   .0162616   -46.62   0.000    -.7905084   -.7256748
       1939  |  -.8141147   .0160556   -50.71   0.000    -.8461211   -.7821084
       1940  |  -.8647124   .0156748   -55.17   0.000    -.8959596   -.8334652
       1941  |  -.8922576    .015529   -57.46   0.000    -.9232142   -.8613011
             |
       regno |
          2  |  -.0318472   .0074537    -4.27   0.000    -.0467058   -.0169886
          3  |  -.0134247    .010879    -1.23   0.221    -.0351116    .0082623
          5  |   .0071576   .0173432     0.41   0.681    -.0274153    .0417306
          6  |  -.0538169   .0242593    -2.22   0.030     -.102177   -.0054567
          8  |   .0053804   .0152142     0.35   0.725    -.0249485    .0357093
          9  |   .0017416   .0098743     0.18   0.860    -.0179424    .0214257
         10  |   .0117207   .0149599     0.78   0.436    -.0181013    .0415426
         11  |   .0336961   .0218323     1.54   0.127    -.0098259    .0772181
         12  |    .009306   .0136653     0.68   0.498    -.0179353    .0365472
         13  |   .0029754   .0092876     0.32   0.750    -.0155391      .02149
         14  |   .0104269   .0140626     0.74   0.461    -.0176064    .0384601
         15  |  -.0019936   .0111281    -0.18   0.858    -.0241771    .0201899
         17  |   .0195776   .0342017     0.57   0.569    -.0486022    .0877575
         18  |   .0175826    .015674     1.12   0.266     -.013663    .0488281
         19  |   .0186884   .0194567     0.96   0.340    -.0200978    .0574746
         20  |   .0112879   .0170014     0.66   0.509    -.0226037    .0451795
         21  |   .0107551   .0196783     0.55   0.586    -.0284728     .049983
         22  |   .0188445   .0163427     1.15   0.253    -.0137341    .0514231
         23  |  -.0039205   .0130067    -0.30   0.764    -.0298489    .0220078
         24  |    .018379    .012456     1.48   0.144    -.0064516    .0432097
         25  |   .0319031    .018749     1.70   0.093    -.0054724    .0692787
         26  |   .0054127   .0203909     0.27   0.791    -.0352359    .0460612
         27  |   .0255717   .0220554     1.16   0.250    -.0183948    .0695383
         28  |   .0472174   .0284934     1.66   0.102    -.0095831    .1040179
         29  |   .0287887   .0213625     1.35   0.182    -.0137967     .071374
         30  |   .0348339   .0265406     1.31   0.194    -.0180737    .0877416
         31  |   .0294429   .0225508     1.31   0.196    -.0155113    .0743972
         32  |   .0218945   .0177558     1.23   0.222     -.013501    .0572899
         33  |   .0313449   .0210364     1.49   0.141    -.0105904    .0732802
         34  |    .034887    .008697     4.01   0.000     .0175499    .0522242
         35  |   .0310366   .0272601     1.14   0.259    -.0233054    .0853785
         36  |   .0089545   .0040564     2.21   0.030     .0008681    .0170409
         37  |   .0365296   .0167039     2.19   0.032     .0032309    .0698282
         38  |   .0391582   .0200174     1.96   0.054    -.0007458    .0790622
         39  |   .0424711   .0163935     2.59   0.012     .0097912     .075151
         40  |   .0496126   .0188219     2.64   0.010     .0120918    .0871333
         41  |   .0403967    .015061     2.68   0.009     .0103732    .0704203
         42  |   .0030535    .005089     0.60   0.550    -.0070912    .0131983
         43  |   .0459174   .0151531     3.03   0.003     .0157102    .0761246
         44  |   .0213613   .0027189     7.86   0.000     .0159414    .0267813
         46  |  -.0682216   .0034093   -20.01   0.000    -.0750179   -.0614252
         47  |   .0407132   .0054455     7.48   0.000     .0298577    .0515687
         49  |   .0643755    .031371     2.05   0.044     .0018385    .1269125
         50  |   .0564178   .0237642     2.37   0.020     .0090448    .1037909
         51  |   .0590097   .0243448     2.42   0.018     .0104792    .1075401
         52  |   .0642811   .0297511     2.16   0.034     .0049734    .1235888
         53  |   .0561463   .0174265     3.22   0.002     .0214072    .0908854
         54  |   .0627346   .0147757     4.25   0.000     .0332797    .0921894
         55  |   .0617449   .0193333     3.19   0.002     .0232047    .1002852
         56  |   .0187393    .021845     0.86   0.394    -.0248079    .0622865
         58  |   .0135322   .0179946     0.75   0.454    -.0223394    .0494038
         59  |   .0655673   .0144689     4.53   0.000     .0367241    .0944104
         61  |   .0866021   .0284641     3.04   0.003       .02986    .1433441
         62  |   .0424715    .012134     3.50   0.001     .0182829    .0666601
         63  |   .0725972   .0201099     3.61   0.001     .0325089    .1126855
         64  |   .0700025   .0192874     3.63   0.001     .0315537    .1084513
         65  |   .0366296   .0062198     5.89   0.000     .0242306    .0490285
         66  |   .0493726   .0165247     2.99   0.004     .0164313    .0823139
         69  |   .0175514   .0066207     2.65   0.010     .0043532    .0307496
         70  |   .0110018   .0123964     0.89   0.378    -.0137099    .0357135
         71  |   .0393312   .0040421     9.73   0.000     .0312733     .047389
         72  |   .0567221   .0230803     2.46   0.016     .0107123    .1027319
         75  |   .0130678   .0140449     0.93   0.355    -.0149302    .0410659
         77  |    .032836   .0095096     3.45   0.001      .013879    .0517931
         79  |  -.1048788   .0028145   -37.26   0.000    -.1104893   -.0992682
         82  |   .0117731   .0084365     1.40   0.167    -.0050448    .0285911
         83  |   .0080058   .0047488     1.69   0.096    -.0014608    .0174723
         84  |    .024878   .0021733    11.45   0.000     .0205455    .0292104
         85  |  -.0475426   .0160023    -2.97   0.004    -.0794427   -.0156426
         87  |  -.1309733   .0320565    -4.09   0.000    -.1948767   -.0670699
         88  |  -.0427363   .0091297    -4.68   0.000     -.060936   -.0245366
         89  |   .0300961     .00358     8.41   0.000     .0229594    .0372327
             |
       _cons |   1.131833   .1053482    10.74   0.000     .9218253    1.341841
------------------------------------------------------------------------------

. reg marrmr sr10r lnpopfr i.yob i.regno [aweight=popmr], cluster(regno);
(sum of wgt is   1.0071e+07)

Linear regression                               Number of obs     =      1,971
                                                F(27, 72)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9956
                                                Root MSE          =     .02423

                                 (Std. Err. adjusted for 73 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrmr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10r |  -.0484648   .0266352    -1.82   0.073    -.1015612    .0046316
     lnpopfr |  -.0013439   .0090555    -0.15   0.882    -.0193957     .016708
             |
         yob |
       1916  |  -.0000746   .0024754    -0.03   0.976    -.0050093    .0048601
       1917  |   -.002915   .0042273    -0.69   0.493    -.0113419     .005512
       1918  |  -.0018524   .0063763    -0.29   0.772    -.0145634    .0108585
       1919  |  -.0021289   .0014776    -1.44   0.154    -.0050745    .0008166
       1920  |  -.0017104   .0045526    -0.38   0.708    -.0107858    .0073651
       1921  |  -.0051831    .003654    -1.42   0.160    -.0124672     .002101
       1922  |  -.0046949   .0044549    -1.05   0.295    -.0135756    .0041857
       1923  |  -.0068425   .0027526    -2.49   0.015    -.0123297   -.0013552
       1924  |  -.0102564   .0026454    -3.88   0.000    -.0155299    -.004983
       1925  |  -.0120593   .0033332    -3.62   0.001     -.018704   -.0054146
       1926  |  -.0173889   .0044386    -3.92   0.000    -.0262371   -.0085406
       1927  |  -.0223849   .0056655    -3.95   0.000     -.033679   -.0110909
       1928  |  -.0285076   .0065778    -4.33   0.000    -.0416201   -.0153951
       1929  |  -.0387702   .0081364    -4.77   0.000    -.0549898   -.0225507
       1930  |  -.0550853   .0092078    -5.98   0.000    -.0734408   -.0367299
       1931  |  -.0805436   .0100735    -8.00   0.000    -.1006247   -.0604625
       1932  |  -.1142425   .0110251   -10.36   0.000    -.1362207   -.0922643
       1933  |  -.1552051   .0120184   -12.91   0.000    -.1791633    -.131247
       1934  |  -.2263398    .013279   -17.04   0.000    -.2528111   -.1998686
       1935  |  -.3373331    .015127   -22.30   0.000    -.3674883   -.3071778
       1936  |   -.488656     .01617   -30.22   0.000    -.5208904   -.4564217
       1937  |   -.669289   .0160733   -41.64   0.000    -.7013306   -.6372475
       1938  |  -.7785894   .0153244   -50.81   0.000    -.8091381   -.7480408
       1939  |  -.8352995   .0149755   -55.78   0.000    -.8651527   -.8054463
       1940  |  -.8842516   .0145205   -60.90   0.000    -.9131977   -.8553055
       1941  |  -.9152628   .0143051   -63.98   0.000    -.9437794   -.8867462
             |
       regno |
          2  |  -.0457592   .0080091    -5.71   0.000     -.061725   -.0297935
          3  |  -.0327724   .0070435    -4.65   0.000    -.0468134   -.0187314
          5  |  -.0089779   .0098061    -0.92   0.363    -.0285259    .0105701
          6  |   -.023137   .0161379    -1.43   0.156    -.0553072    .0090332
          8  |  -.0097611   .0090818    -1.07   0.286    -.0278654    .0083432
          9  |    -.00516   .0056013    -0.92   0.360    -.0163259    .0060059
         10  |  -.0007695   .0084631    -0.09   0.928    -.0176404    .0161015
         11  |    .016252   .0130615     1.24   0.217    -.0097856    .0422896
         12  |   -.002727   .0079558    -0.34   0.733    -.0185866    .0131326
         13  |  -.0041702   .0052271    -0.80   0.428    -.0145902    .0062497
         14  |   .0018179   .0082643     0.22   0.827    -.0146566    .0182924
         15  |  -.0138707   .0059884    -2.32   0.023    -.0258083   -.0019331
         17  |   -.018389   .0209778    -0.88   0.384    -.0602075    .0234295
         18  |   .0046668   .0091115     0.51   0.610    -.0134967    .0228303
         19  |  -.0006751   .0111402    -0.06   0.952    -.0228827    .0215326
         20  |  -.0028127   .0095587    -0.29   0.769    -.0218677    .0162423
         21  |   -.008563    .011299    -0.76   0.451    -.0310872    .0139613
         22  |   .0032497   .0095182     0.34   0.734    -.0157245    .0222239
         23  |   -.016218   .0073535    -2.21   0.031    -.0308769   -.0015592
         24  |   .0147016   .0078484     1.87   0.065    -.0009438    .0303471
         25  |   .0223649   .0110684     2.02   0.047     .0003004    .0444294
         26  |   -.009877   .0124009    -0.80   0.428    -.0345978    .0148438
         27  |   .0034648   .0129051     0.27   0.789    -.0222609    .0291906
         28  |   .0218997   .0170324     1.29   0.203    -.0120537     .055853
         29  |   .0115367   .0126075     0.92   0.363    -.0135959    .0366694
         30  |   .0104468   .0158553     0.66   0.512    -.0211602    .0420538
         31  |   .0080939   .0133483     0.61   0.546    -.0185155    .0347033
         32  |   .0085431   .0103322     0.83   0.411    -.0120537    .0291399
         33  |    .010939   .0123056     0.89   0.377    -.0135917    .0354698
         34  |   .0534127   .0054065     9.88   0.000     .0426349    .0641904
         35  |   .0004925   .0164901     0.03   0.976      -.03238    .0333649
         36  |   .0043202   .0027571     1.57   0.122    -.0011759    .0098164
         37  |   .0215135   .0098513     2.18   0.032     .0018753    .0411517
         38  |   .0209738   .0116825     1.80   0.077     -.002315    .0442625
         39  |   .0270555   .0097648     2.77   0.007     .0075896    .0465214
         40  |   .0310019   .0111717     2.78   0.007     .0087314    .0532723
         41  |   .0294154   .0087698     3.35   0.001     .0119332    .0468977
         42  |   .0139776   .0050214     2.78   0.007     .0039677    .0239875
         43  |   .0394788   .0101542     3.89   0.000     .0192367    .0597209
         44  |    .025239   .0024767    10.19   0.000     .0203017    .0301762
         46  |  -.0853594   .0036164   -23.60   0.000    -.0925686   -.0781502
         47  |    .042378   .0041027    10.33   0.000     .0341994    .0505566
         49  |   .0342954   .0193276     1.77   0.080    -.0042334    .0728242
         50  |   .0377539   .0145913     2.59   0.012     .0086667     .066841
         51  |   .0369386   .0148947     2.48   0.015     .0072466    .0666306
         52  |   .0366734    .018421     1.99   0.050    -.0000482     .073395
         53  |   .0531192   .0104769     5.07   0.000     .0322338    .0740046
         54  |   .0594514   .0086992     6.83   0.000     .0421099    .0767928
         55  |   .0464901   .0117675     3.95   0.000     .0230321    .0699482
         56  |  -.0033836    .013087    -0.26   0.797     -.029472    .0227048
         58  |  -.0094957   .0113215    -0.84   0.404    -.0320648    .0130734
         59  |   .0594257   .0088032     6.75   0.000     .0418768    .0769746
         61  |   .0666585    .017357     3.84   0.000      .032058    .1012591
         62  |   .0318125   .0070546     4.51   0.000     .0177494    .0458757
         63  |   .0614324   .0120327     5.11   0.000     .0374457    .0854191
         64  |   .0608433   .0116439     5.23   0.000     .0376316    .0840549
         65  |     .03584   .0033288    10.77   0.000     .0292042    .0424757
         66  |   .0429751   .0098103     4.38   0.000     .0234186    .0625315
         69  |   .0136838   .0042222     3.24   0.002      .005267    .0221007
         70  |   .0345744   .0077315     4.47   0.000     .0191619    .0499869
         71  |    .053785   .0040559    13.26   0.000     .0456996    .0618703
         72  |   .0361114   .0141238     2.56   0.013     .0079562    .0642666
         75  |  -.0057362   .0091347    -0.63   0.532    -.0239459    .0124735
         77  |   .0298165   .0058664     5.08   0.000     .0181221    .0415108
         79  |   -.105289   .0012383   -85.03   0.000    -.1077575   -.1028206
         82  |  -.0006098    .004872    -0.13   0.901    -.0103219    .0091023
         83  |   .0030218   .0027164     1.11   0.270    -.0023931    .0084368
         84  |   .0222745   .0007126    31.26   0.000      .020854     .023695
         85  |  -.0287471   .0103001    -2.79   0.007    -.0492801   -.0082142
         87  |  -.1244939   .0197992    -6.29   0.000    -.1639629   -.0850248
         88  |  -.0371473   .0054578    -6.81   0.000    -.0480271   -.0262674
         89  |   .0392944   .0045101     8.71   0.000     .0303037    .0482852
             |
       _cons |    .989527   .0731047    13.54   0.000     .8437956    1.135258
------------------------------------------------------------------------------

. reg marrmr sr10r lnpopfr i.yob i.regno i.regno#c.time, cluster(regno);
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      1,971
                                                F(26, 72)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9951
                                                Root MSE          =     .02336

                                 (Std. Err. adjusted for 73 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrmr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10r |    .191533   .0644358     2.97   0.004     .0630826    .3199833
     lnpopfr |  -.0118127   .0093076    -1.27   0.208     -.030367    .0067417
             |
         yob |
       1916  |  -.0010084   .0023232    -0.43   0.666    -.0056397    .0036229
       1917  |    -.00428   .0038405    -1.11   0.269    -.0119358    .0033758
       1918  |  -.0027434   .0058287    -0.47   0.639    -.0143627    .0088759
       1919  |   .0046635   .0018541     2.52   0.014     .0009674    .0083596
       1920  |   .0009259   .0039172     0.24   0.814    -.0068829    .0087348
       1921  |   .0010381   .0033039     0.31   0.754    -.0055482    .0076244
       1922  |   .0007948   .0037377     0.21   0.832    -.0066562    .0082457
       1923  |   .0011071   .0026456     0.42   0.677    -.0041668    .0063809
       1924  |  -.0025712   .0025505    -1.01   0.317    -.0076556    .0025132
       1925  |  -.0072118   .0034119    -2.11   0.038    -.0140133   -.0004104
       1926  |  -.0178321   .0045665    -3.90   0.000    -.0269353   -.0087288
       1927  |  -.0282931   .0066494    -4.25   0.000    -.0415485   -.0150378
       1928  |  -.0404827   .0080252    -5.04   0.000    -.0564807   -.0244848
       1929  |  -.0530228   .0102286    -5.18   0.000    -.0734132   -.0326325
       1930  |  -.0775637   .0108133    -7.17   0.000    -.0991197   -.0560078
       1931  |  -.1072985   .0125766    -8.53   0.000    -.1323695   -.0822275
       1932  |  -.1473785   .0127044   -11.60   0.000    -.1727043   -.1220527
       1933  |  -.1886019   .0134647   -14.01   0.000    -.2154432   -.1617606
       1934  |  -.2648625   .0143487   -18.46   0.000    -.2934661    -.236259
       1935  |   -.378385    .015663   -24.16   0.000    -.4096086   -.3471614
       1936  |  -.5301915      .0174   -30.47   0.000    -.5648778   -.4955051
       1937  |   -.705802   .0195104   -36.18   0.000    -.7446953   -.6669087
       1938  |  -.8227568    .020975   -39.23   0.000    -.8645698   -.7809439
       1939  |  -.8797798   .0223755   -39.32   0.000    -.9243844   -.8351751
       1940  |  -.9305755   .0223695   -41.60   0.000    -.9751682   -.8859828
       1941  |  -.9576298   .0229097   -41.80   0.000    -1.003299   -.9119602
             |
       regno |
          2  |  -.0410076     .00367   -11.17   0.000    -.0483237   -.0336915
          3  |   .0228017   .0099842     2.28   0.025     .0028985    .0427049
          5  |   .0599617   .0154519     3.88   0.000     .0291589    .0907644
          6  |  -.0521685   .0149597    -3.49   0.001    -.0819901   -.0223469
          8  |   .0201598   .0116863     1.73   0.089    -.0031365    .0434561
          9  |   .0382627   .0091047     4.20   0.000     .0201127    .0564126
         10  |   .0399864   .0122319     3.27   0.002     .0156026    .0643703
         11  |   .0759826   .0151615     5.01   0.000     .0457588    .1062065
         12  |   .0449315   .0099438     4.52   0.000     .0251089    .0647541
         13  |   .0534796   .0092657     5.77   0.000     .0350089    .0719504
         14  |   .0490866   .0115282     4.26   0.000     .0261055    .0720677
         15  |   .0445732   .0115095     3.87   0.000     .0216294     .067517
         17  |   .0244178   .0249352     0.98   0.331    -.0252895    .0741252
         18  |   .0523002   .0118397     4.42   0.000     .0286982    .0759022
         19  |    .052694   .0154312     3.41   0.001     .0219324    .0834556
         20  |   .0649995   .0153845     4.22   0.000      .034331    .0956679
         21  |   .0475024   .0162255     2.93   0.005     .0151574    .0798474
         22  |   .0348452   .0123577     2.82   0.006     .0102106    .0594798
         23  |   .0544838   .0108808     5.01   0.000     .0327933    .0761743
         24  |   .0614935   .0103713     5.93   0.000     .0408187    .0821684
         25  |   .0423067   .0134435     3.15   0.002     .0155076    .0691059
         26  |   .0532669   .0137169     3.88   0.000     .0259227    .0806112
         27  |   .0639954   .0170268     3.76   0.000     .0300532    .0979377
         28  |    .064942   .0196396     3.31   0.001     .0257912    .1040929
         29  |   .0642826   .0157196     4.09   0.000     .0329461     .095619
         30  |   .0614726   .0191915     3.20   0.002      .023215    .0997303
         31  |   .0591791   .0163472     3.62   0.001     .0265916    .0917666
         32  |   .0561551   .0134365     4.18   0.000     .0293699    .0829403
         33  |   .0503197   .0159011     3.16   0.002     .0186214     .082018
         34  |  -.0480002   .0125966    -3.81   0.000    -.0731111   -.0228893
         35  |   .0857698   .0179734     4.77   0.000     .0499406     .121599
         36  |   .0160664   .0069826     2.30   0.024     .0021469     .029986
         37  |   .0334559   .0135997     2.46   0.016     .0063454    .0605663
         38  |   .0584422   .0148425     3.94   0.000     .0288541    .0880303
         39  |   .0380166   .0130276     2.92   0.005     .0120466    .0639866
         40  |    .045674   .0150283     3.04   0.003     .0157157    .0756323
         41  |   .0466199   .0110829     4.21   0.000     .0245266    .0687132
         42  |  -.0078393   .0042075    -1.86   0.067    -.0162267    .0005481
         43  |  -.0014081   .0112023    -0.13   0.900    -.0237395    .0209233
         44  |  -.0290106   .0142923    -2.03   0.046    -.0575017   -.0005195
         46  |   -.012212   .0098991    -1.23   0.221    -.0319455    .0075216
         47  |  -.0564948   .0185833    -3.04   0.003    -.0935399   -.0194497
         49  |   .0362855   .0235189     1.54   0.127    -.0105986    .0831695
         50  |   .0198959   .0174901     1.14   0.259    -.0149701    .0547618
         51  |   .0341661   .0181856     1.88   0.064    -.0020864    .0704185
         52  |   .0720345    .018889     3.81   0.000     .0343799    .1096891
         53  |   .0612265    .012804     4.78   0.000     .0357022    .0867507
         54  |   .0376979   .0105056     3.59   0.001     .0167554    .0586405
         55  |   .0479618   .0133344     3.60   0.001     .0213801    .0745435
         56  |   .0176676   .0159751     1.11   0.272    -.0141781    .0495133
         58  |   .0038747   .0141722     0.27   0.785    -.0243772    .0321265
         59  |   .0025921   .0136151     0.19   0.850    -.0245491    .0297332
         61  |   .0357455   .0201171     1.78   0.080    -.0043572    .0758481
         62  |   .0012654    .012949     0.10   0.922    -.0245479    .0270787
         63  |   .0360356     .01434     2.51   0.014     .0074493    .0646219
         64  |   .0278856   .0136484     2.04   0.045      .000678    .0550932
         65  |   .0057865   .0081169     0.71   0.478    -.0103941    .0219672
         66  |   .0107696   .0120116     0.90   0.373    -.0131751    .0347144
         69  |  -.0175778   .0117256    -1.50   0.138    -.0409524    .0057967
         70  |  -.2022958   .0347584    -5.82   0.000    -.2715854   -.1330062
         71  |  -.0210955   .0063707    -3.31   0.001    -.0337952   -.0083958
         72  |  -.0013482   .0200222    -0.07   0.947    -.0412618    .0385654
         75  |  -.0600061   .0209723    -2.86   0.006    -.1018136   -.0181986
         77  |  -.0101956   .0103114    -0.99   0.326     -.030751    .0103599
         79  |  -.2180212   .0257088    -8.48   0.000    -.2692707   -.1667717
         82  |  -.0337588    .021697    -1.56   0.124     -.077011    .0094933
         83  |   -.091535   .0283315    -3.23   0.002    -.1480127   -.0350572
         84  |  -.0432468    .020264    -2.13   0.036    -.0836423   -.0028513
         85  |  -.1805363   .0290345    -6.22   0.000    -.2384155   -.1226571
         87  |  -.4150995   .0638906    -6.50   0.000    -.5424631   -.2877359
         88  |  -.2064034   .0325064    -6.35   0.000    -.2712037    -.141603
         89  |   .0026776   .0048015     0.56   0.579     -.006894    .0122493
             |
regno#c.time |
          1  |  -.0043991   .0009218    -4.77   0.000    -.0062366   -.0025616
          2  |  -.0085577   .0019214    -4.45   0.000    -.0123879   -.0047276
          3  |  -.0088638   .0016117    -5.50   0.000    -.0120766    -.005651
          5  |  -.0066493   .0011484    -5.79   0.000    -.0089386   -.0043601
          6  |  -.0060892     .00115    -5.30   0.000    -.0083816   -.0037968
          8  |  -.0036454   .0002635   -13.83   0.000    -.0041707     -.00312
          9  |  -.0048617   .0007596    -6.40   0.000    -.0063758   -.0033475
         10  |  -.0044989   .0006587    -6.83   0.000    -.0058119   -.0031859
         11  |  -.0037945   .0003945    -9.62   0.000    -.0045809   -.0030081
         12  |  -.0047741   .0005837    -8.18   0.000    -.0059377   -.0036105
         13  |  -.0060148   .0008913    -6.75   0.000    -.0077915    -.004238
         14  |  -.0041899   .0006788    -6.17   0.000    -.0055431   -.0028367
         15  |  -.0070199   .0012516    -5.61   0.000     -.009515   -.0045248
         17  |  -.0035925   .0001171   -30.68   0.000    -.0038259    -.003359
         18  |  -.0046619   .0006419    -7.26   0.000    -.0059416   -.0033823
         19  |  -.0056058   .0009126    -6.14   0.000     -.007425   -.0037865
         20  |  -.0058316   .0009088    -6.42   0.000    -.0076433     -.00402
         21  |  -.0057891   .0009014    -6.42   0.000     -.007586   -.0039922
         22  |  -.0043189   .0006382    -6.77   0.000    -.0055912   -.0030465
         23  |  -.0063782    .000727    -8.77   0.000    -.0078274    -.004929
         24  |  -.0037378   .0005388    -6.94   0.000    -.0048119   -.0026637
         25  |  -.0017483   .0004514    -3.87   0.000    -.0026482   -.0008485
         26  |  -.0037462   .0002921   -12.83   0.000    -.0043284   -.0031639
         27  |  -.0060816   .0011423    -5.32   0.000    -.0083586   -.0038045
         28  |  -.0035087   .0006406    -5.48   0.000    -.0047857   -.0022318
         29  |  -.0039152   .0004658    -8.40   0.000    -.0048438   -.0029866
         30  |  -.0042896   .0005946    -7.21   0.000    -.0054748   -.0031044
         31  |  -.0047131   .0005946    -7.93   0.000    -.0058983   -.0035279
         32  |  -.0040974   .0005825    -7.03   0.000    -.0052586   -.0029363
         33  |  -.0044498   .0006592    -6.75   0.000    -.0057639   -.0031356
         34  |   .0012911    .000197     6.55   0.000     .0008984    .0016838
         35  |  -.0058472   .0006178    -9.46   0.000    -.0070788   -.0046156
         36  |  -.0039931   .0002242   -17.81   0.000      -.00444   -.0035462
         37  |  -.0032513   .0005578    -5.83   0.000    -.0043632   -.0021394
         38  |  -.0037526   .0005231    -7.17   0.000    -.0047953   -.0027099
         39  |  -.0032043   .0004864    -6.59   0.000    -.0041739   -.0022348
         40  |  -.0035764   .0006696    -5.34   0.000    -.0049113   -.0022415
         41  |  -.0029162   .0005156    -5.66   0.000    -.0039442   -.0018883
         42  |  -.0014731   .0001346   -10.95   0.000    -.0017414   -.0012048
         43  |   .0011951   .0002347     5.09   0.000     .0007272    .0016629
         44  |  -.0001101    .000349    -0.32   0.753    -.0008059    .0005857
         46  |  -.0074891   .0001589   -47.14   0.000    -.0078058   -.0071723
         47  |   .0035382   .0005975     5.92   0.000      .002347    .0047293
         49  |  -.0016188   .0003643    -4.44   0.000    -.0023451   -.0008926
         50  |  -.0005929   .0002656    -2.23   0.029    -.0011224   -.0000634
         51  |  -.0018121   .0004445    -4.08   0.000    -.0026982    -.000926
         52  |  -.0030307   .0004405    -6.88   0.000    -.0039088   -.0021525
         53  |  -.0011604    .000587    -1.98   0.052    -.0023305    9.63e-06
         54  |   -.000182   .0005276    -0.35   0.731    -.0012338    .0008697
         55  |  -.0019214   .0004602    -4.17   0.000    -.0028388   -.0010039
         56  |  -.0037024   .0007508    -4.93   0.000    -.0051992   -.0022056
         58  |  -.0053413   .0011345    -4.71   0.000    -.0076029   -.0030798
         59  |   .0013825   .0000679    20.36   0.000     .0012472    .0015179
         61  |   .0004999   .0004626     1.08   0.283    -.0004222    .0014219
         62  |  -.0014741   .0004255    -3.46   0.001    -.0023223   -.0006259
         63  |  -.0001685   .0004219    -0.40   0.691    -.0010096    .0006726
         64  |   .0003685    .000295     1.25   0.216    -.0002196    .0009567
         65  |  -.0013427   .0004726    -2.84   0.006    -.0022848   -.0004006
         66  |   .0003654   .0003436     1.06   0.291    -.0003195    .0010503
         69  |  -.0005346    .000174    -3.07   0.003    -.0008814   -.0001878
         70  |   .0103926   .0013363     7.78   0.000     .0077287    .0130565
         71  |   .0015502   .0001388    11.17   0.000     .0012735     .001827
         72  |  -.0001988   .0002284    -0.87   0.387     -.000654    .0002564
         75  |  -.0015599   .0002391    -6.52   0.000    -.0020366   -.0010831
         77  |   .0001119   .0000471     2.38   0.020      .000018    .0002058
         79  |   .0028328   .0007054     4.02   0.000     .0014267    .0042389
         82  |  -.0009285   .0006347    -1.46   0.148    -.0021938    .0003368
         83  |   .0001372   .0004989     0.27   0.784    -.0008573    .0011316
         84  |  -.0005892   .0002916    -2.02   0.047    -.0011706   -7.83e-06
         85  |   .0035301   .0007388     4.78   0.000     .0020573    .0050029
         87  |   .0062202   .0012962     4.80   0.000     .0036361    .0088042
         88  |   .0046926    .000756     6.21   0.000     .0031856    .0061996
         89  |          0  (omitted)
             |
       _cons |   .9395665   .0842969    11.15   0.000     .7715238    1.107609
------------------------------------------------------------------------------

. reg marrmr sr10r lnpopfr i.yob i.regno i.regno#c.time [aweight=popmr], cluster(regno);
(sum of wgt is   1.0071e+07)
note: 89.regno#c.time omitted because of collinearity

Linear regression                               Number of obs     =      1,971
                                                F(27, 72)         =          .
                                                Prob > F          =          .
                                                R-squared         =     0.9968
                                                Root MSE          =     .02105

                                 (Std. Err. adjusted for 73 clusters in regno)
------------------------------------------------------------------------------
             |               Robust
      marrmr |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
       sr10r |   .1531443   .0629669     2.43   0.017     .0276222    .2786665
     lnpopfr |  -.0105093   .0094522    -1.11   0.270     -.029352    .0083334
             |
         yob |
       1916  |  -.0016227   .0025128    -0.65   0.520    -.0066319    .0033865
       1917  |  -.0044635   .0042402    -1.05   0.296    -.0129161    .0039892
       1918  |  -.0039626   .0064119    -0.62   0.539    -.0167445    .0088194
       1919  |   .0016865   .0017511     0.96   0.339    -.0018041    .0051772
       1920  |  -.0009949   .0045586    -0.22   0.828    -.0100824    .0080925
       1921  |   -.002046   .0035444    -0.58   0.566    -.0091117    .0050197
       1922  |   -.003256   .0041499    -0.78   0.435    -.0115288    .0050167
       1923  |  -.0039323   .0025152    -1.56   0.122    -.0089462    .0010816
       1924  |  -.0082664    .002375    -3.48   0.001    -.0130009   -.0035319
       1925  |  -.0121288   .0028195    -4.30   0.000    -.0177494   -.0065082
       1926  |  -.0233407   .0047166    -4.95   0.000    -.0327431   -.0139383
       1927  |  -.0322058   .0066691    -4.83   0.000    -.0455005   -.0189111
       1928  |  -.0435814   .0083935    -5.19   0.000    -.0603135   -.0268492
       1929  |  -.0557972   .0099925    -5.58   0.000     -.075717   -.0358775
       1930  |  -.0784256   .0111558    -7.03   0.000    -.1006643   -.0561869
       1931  |  -.1058437   .0123057    -8.60   0.000    -.1303747   -.0813128
       1932  |  -.1439888   .0131243   -10.97   0.000    -.1701517    -.117826
       1933  |  -.1862601     .01392   -13.38   0.000    -.2140092   -.1585111
       1934  |  -.2628802   .0155385   -16.92   0.000    -.2938557   -.2319048
       1935  |  -.3784826   .0172173   -21.98   0.000    -.4128047   -.3441605
       1936  |  -.5342088   .0184871   -28.90   0.000    -.5710622   -.4973555
       1937  |  -.7172615   .0197347   -36.35   0.000    -.7566018   -.6779212
       1938  |  -.8309184   .0208786   -39.80   0.000    -.8725391   -.7892978
       1939  |  -.8865598   .0216353   -40.98   0.000    -.9296889   -.8434307
       1940  |  -.9367514   .0219349   -42.71   0.000    -.9804779    -.893025
       1941  |  -.9662965   .0223601   -43.22   0.000    -1.010871   -.9217225
             |
       regno |
          2  |  -.0748572   .0032215   -23.24   0.000    -.0812791   -.0684352
          3  |   .0088909   .0122129     0.73   0.469     -.015455    .0332369
          5  |   .0640561   .0184867     3.46   0.001     .0272036    .1009087
          6  |  -.0326984    .016711    -1.96   0.054    -.0660112    .0006145
          8  |   .0306979   .0111003     2.77   0.007     .0085699    .0528259
          9  |   .0425089   .0102624     4.14   0.000     .0220512    .0629667
         10  |   .0472724   .0134516     3.51   0.001     .0204571    .0740876
         11  |   .0913309   .0173604     5.26   0.000     .0567235    .1259383
         12  |   .0526751   .0105623     4.99   0.000     .0316196    .0737307
         13  |   .0646949   .0104655     6.18   0.000     .0438324    .0855574
         14  |   .0569965   .0132512     4.30   0.000     .0305807    .0834123
         15  |   .0451881   .0135307     3.34   0.001     .0182152    .0721611
         17  |   .0294409   .0235549     1.25   0.215    -.0175149    .0763967
         18  |   .0593034   .0129225     4.59   0.000     .0335428    .0850641
         19  |   .0572672   .0164387     3.48   0.001     .0244973    .0900372
         20  |   .0711856   .0180499     3.94   0.000     .0352038    .1071674
         21  |   .0503078   .0177585     2.83   0.006     .0149068    .0857087
         22  |   .0383241   .0126545     3.03   0.003     .0130979    .0635504
         23  |   .0599309   .0123523     4.85   0.000     .0353071    .0845548
         24  |   .0708065   .0115248     6.14   0.000     .0478323    .0937808
         25  |   .0479447   .0147685     3.25   0.002     .0185043     .077385
         26  |   .0637088   .0151057     4.22   0.000     .0335962    .0938215
         27  |   .0649748   .0192004     3.38   0.001     .0266996    .1032501
         28  |   .0724491   .0211336     3.43   0.001     .0303201    .1145781
         29  |   .0694604   .0168506     4.12   0.000     .0358693    .1030515
         30  |   .0661089    .020397     3.24   0.002     .0254483    .1067695
         31  |   .0655121   .0170994     3.83   0.000     .0314251    .0995992
         32  |   .0618372    .014619     4.23   0.000     .0326947    .0909796
         33  |   .0558256   .0160079     3.49   0.001     .0239145    .0877368
         34  |   -.030362   .0142569    -2.13   0.037    -.0587827   -.0019413
         35  |   .0960138   .0197065     4.87   0.000     .0567295    .1352981
         36  |   .0323197   .0071791     4.50   0.000     .0180083     .046631
         37  |   .0429738   .0131353     3.27   0.002     .0167891    .0691585
         38  |   .0677527    .015205     4.46   0.000     .0374422    .0980632
         39  |   .0539148    .012189     4.42   0.000     .0296164    .0782132
         40  |   .0565405   .0143456     3.94   0.000      .027943     .085138
         41  |   .0588366   .0111284     5.29   0.000     .0366526    .0810206
         42  |  -.0033534   .0061068    -0.55   0.585     -.015527    .0088203
         43  |   .0077546   .0117405     0.66   0.511    -.0156498    .0311589
         44  |  -.0153305   .0186838    -0.82   0.415    -.0525759     .021915
         46  |   -.033207   .0123398    -2.69   0.009    -.0578059   -.0086081
         47  |  -.0446018    .018635    -2.39   0.019      -.08175   -.0074536
         49  |   .0450398   .0219795     2.05   0.044     .0012245    .0888551
         50  |   .0277863   .0160886     1.73   0.088    -.0042858    .0598583
         51  |   .0463395   .0173223     2.68   0.009     .0118081     .080871
         52  |   .0864598   .0195449     4.42   0.000     .0474977    .1254219
         53  |   .0743322   .0150254     4.95   0.000     .0443796    .1042847
         54  |    .046502    .011372     4.09   0.000     .0238323    .0691718
         55  |   .0634327   .0131477     4.82   0.000     .0372233    .0896422
         56  |    .011747   .0167859     0.70   0.486    -.0217151    .0452091
         58  |  -.0112954   .0139544    -0.81   0.421     -.039113    .0165223
         59  |   .0157272   .0118103     1.33   0.187    -.0078163    .0392707
         61  |   .0431174   .0202413     2.13   0.037     .0027671    .0834677
         62  |   .0088709   .0109644     0.81   0.421    -.0129863     .030728
         63  |   .0493524   .0143334     3.44   0.001     .0207793    .0779256
         64  |    .040651   .0129919     3.13   0.003     .0147521    .0665498
         65  |   .0201692   .0068924     2.93   0.005     .0064294    .0339091
         66  |   .0163593   .0118004     1.39   0.170    -.0071643     .039883
         69  |  -.0041066   .0099295    -0.41   0.680    -.0239007    .0156876
         70  |  -.1719002   .0369905    -4.65   0.000    -.2456394   -.0981609
         71  |  -.0101925   .0073896    -1.38   0.172    -.0249234    .0045384
         72  |   .0105116    .017815     0.59   0.557    -.0250019    .0460251
         75  |  -.0571755   .0178633    -3.20   0.002    -.0927853   -.0215656
         77  |   .0029215   .0081503     0.36   0.721    -.0133258    .0191687
         79  |  -.2122748   .0253214    -8.38   0.000     -.262752   -.1617975
         82  |  -.0105527   .0176219    -0.60   0.551    -.0456814     .024576
         83  |  -.0691613   .0255771    -2.70   0.009    -.1201483   -.0181742
         84  |  -.0191347   .0183227    -1.04   0.300    -.0556603    .0173909
         85  |  -.1625225   .0290525    -5.59   0.000    -.2204376   -.1046074
         87  |  -.3745238   .0638459    -5.87   0.000    -.5017982   -.2472494
         88  |   -.183288   .0317591    -5.77   0.000    -.2465986   -.1199774
         89  |   .0265639    .003788     7.01   0.000     .0190125    .0341152
             |
regno#c.time |
          1  |  -.0026901   .0008342    -3.22   0.002    -.0043531   -.0010271
          2  |  -.0043621   .0018897    -2.31   0.024    -.0081291   -.0005951
          3  |  -.0060918   .0016393    -3.72   0.000    -.0093598   -.0028238
          5  |  -.0053294    .001145    -4.65   0.000    -.0076119   -.0030468
          6  |  -.0051616   .0021041    -2.45   0.017    -.0093562   -.0009671
          8  |  -.0029185   .0002027   -14.39   0.000    -.0033226   -.0025143
          9  |   -.003668   .0007094    -5.17   0.000    -.0050821   -.0022538
         10  |  -.0034958   .0006541    -5.34   0.000    -.0047997   -.0021919
         11  |  -.0035623   .0003741    -9.52   0.000    -.0043081   -.0028165
         12  |  -.0038144   .0004875    -7.82   0.000    -.0047861   -.0028426
         13  |  -.0051276   .0008224    -6.23   0.000     -.006767   -.0034881
         14  |  -.0033376   .0006316    -5.28   0.000    -.0045967   -.0020785
         15  |  -.0053752   .0012213    -4.40   0.000    -.0078099   -.0029405
         17  |    -.00259   .0000916   -28.29   0.000    -.0027725   -.0024074
         18  |  -.0036556     .00057    -6.41   0.000    -.0047918   -.0025194
         19  |  -.0043832   .0008567    -5.12   0.000    -.0060909   -.0026755
         20  |  -.0047989   .0009278    -5.17   0.000    -.0066485   -.0029494
         21  |  -.0044425   .0008713    -5.10   0.000    -.0061794   -.0027057
         22  |  -.0030162   .0005602    -5.38   0.000     -.004133   -.0018995
         23  |  -.0051533   .0007038    -7.32   0.000    -.0065563   -.0037503
         24  |  -.0029972   .0004497    -6.66   0.000    -.0038937   -.0021006
         25  |  -.0008953   .0003976    -2.25   0.027    -.0016879   -.0001028
         26  |  -.0032248   .0002218   -14.54   0.000    -.0036671   -.0027826
         27  |  -.0046282    .001089    -4.25   0.000    -.0067992   -.0024573
         28  |    -.00269   .0005795    -4.64   0.000    -.0038451   -.0015349
         29  |  -.0029511   .0004091    -7.21   0.000    -.0037666   -.0021357
         30  |  -.0032004   .0005333    -6.00   0.000    -.0042634   -.0021373
         31  |  -.0036599   .0005134    -7.13   0.000    -.0046834   -.0026364
         32  |  -.0030961   .0005298    -5.84   0.000    -.0041523   -.0020398
         33  |  -.0033191   .0005874    -5.65   0.000      -.00449   -.0021482
         34  |   .0020428   .0001301    15.70   0.000     .0017833    .0023022
         35  |   -.005167   .0005328    -9.70   0.000    -.0062291   -.0041049
         36  |  -.0033182   .0000854   -38.85   0.000    -.0034885   -.0031479
         37  |  -.0023254   .0004865    -4.78   0.000    -.0032952   -.0013556
         38  |  -.0030021   .0004545    -6.60   0.000    -.0039081    -.002096
         39  |  -.0026613   .0004097    -6.50   0.000    -.0034779   -.0018446
         40  |  -.0027415   .0006086    -4.50   0.000    -.0039547   -.0015283
         41  |  -.0022777    .000429    -5.31   0.000    -.0031329   -.0014226
         42  |  -.0001076   .0000185    -5.80   0.000    -.0001446   -.0000707
         43  |   .0019555   .0005151     3.80   0.000     .0009287    .0029823
         44  |   .0007178   .0006397     1.12   0.266    -.0005574    .0019931
         46  |  -.0045822   .0003368   -13.60   0.000    -.0052536   -.0039107
         47  |   .0042982   .0007605     5.65   0.000     .0027821    .0058142
         49  |  -.0007774   .0002909    -2.67   0.009    -.0013574   -.0001974
         50  |   .0003506   .0001455     2.41   0.019     .0000605    .0006406
         51  |  -.0011471   .0003869    -2.96   0.004    -.0019184   -.0003758
         52  |  -.0025801   .0003123    -8.26   0.000    -.0032027   -.0019576
         53  |    -.00072   .0005363    -1.34   0.184     -.001789     .000349
         54  |   .0005636   .0004861     1.16   0.250    -.0004054    .0015327
         55  |  -.0015044   .0003891    -3.87   0.000    -.0022801   -.0007287
         56  |  -.0018766   .0007279    -2.58   0.012    -.0033277   -.0004255
         58  |  -.0026696   .0011088    -2.41   0.019      -.00488   -.0004592
         59  |   .0020602   .0000651    31.64   0.000     .0019304      .00219
         61  |   .0013832   .0004191     3.30   0.002     .0005477    .0022187
         62  |   -.000337   .0004187    -0.80   0.424    -.0011717    .0004977
         63  |   .0004059   .0003931     1.03   0.305    -.0003778    .0011895
         64  |   .0009897   .0002517     3.93   0.000     .0004879    .0014915
         65  |  -.0005975   .0005042    -1.19   0.240    -.0016027    .0004076
         66  |   .0013881   .0003082     4.50   0.000     .0007737    .0020025
         69  |   .0001239   .0002086     0.59   0.554    -.0002919    .0005398
         70  |   .0102798   .0014053     7.32   0.000     .0074785    .0130812
         71  |   .0024407   .0000594    41.12   0.000     .0023223     .002559
         72  |   .0005965   .0001708     3.49   0.001      .000256     .000937
         75  |   .0001101   .0001774     0.62   0.537    -.0002436    .0004638
         77  |    .000782   .0000179    43.58   0.000     .0007462    .0008178
         79  |   .0041288   .0007574     5.45   0.000      .002619    .0056386
         82  |  -.0008236   .0005363    -1.54   0.129    -.0018926    .0002454
         83  |   .0008158   .0004368     1.87   0.066    -.0000549    .0016864
         84  |  -.0002665   .0002551    -1.04   0.300    -.0007751    .0002421
         85  |   .0043888   .0005987     7.33   0.000     .0031953    .0055823
         87  |   .0065206   .0011528     5.66   0.000     .0042225    .0088186
         88  |   .0052733    .000735     7.17   0.000     .0038081    .0067385
         89  |          0  (omitted)
             |
       _cons |   .9399045   .0763853    12.30   0.000     .7876332    1.092176
------------------------------------------------------------------------------

. log close;
      name:  <unnamed>
       log:  C:\research\rfwomen\restat\table2a.log
  log type:  text
 closed on:   3 Aug 2016, 10:52:58
--------------------------------------------------------------------------------------------------------------------
